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Assam Agricultural University, Jorhat

Assam Agricultural University is the first institution of its kind in the whole of North-Eastern Region of India. The main goal of this institution is to produce globally competitive human resources in farm sectorand to carry out research in both conventional and frontier areas for production optimization as well as to disseminate the generated technologies as public good for benefitting the food growers/produces and traders involved in the sector while emphasizing on sustainability, equity and overall food security at household level. Genesis of AAU - The embryo of the agricultural research in the state of Assam was formed as early as 1897 with the establishment of the Upper Shillong Experimental Farm (now in Meghalaya) just after about a decade of creation of the agricultural department in 1882. However, the seeds of agricultural research in today’s Assam were sown in the dawn of the twentieth century with the establishment of two Rice Experimental Stations, one at Karimganj in Barak valley in 1913 and the other at Titabor in Brahmaputra valley in 1923. Subsequent to these research stations, a number of research stations were established to conduct research on important crops, more specifically, jute, pulses, oilseeds etc. The Assam Agricultural University was established on April 1, 1969 under The Assam Agricultural University Act, 1968’ with the mandate of imparting farm education, conduct research in agriculture and allied sciences and to effectively disseminate technologies so generated. Before establishment of the University, there were altogether 17 research schemes/projects in the state under the Department of Agriculture. By July 1973, all the research projects and 10 experimental farms were transferred by the Government of Assam to the AAU which already inherited the College of Agriculture and its farm at Barbheta, Jorhat and College of Veterinary Sciences at Khanapara, Guwahati. Subsequently, College of Community Science at Jorhat (1969), College of Fisheries at Raha (1988), Biswanath College of Agriculture at Biswanath Chariali (1988) and Lakhimpur College of Veterinary Science at Joyhing, North Lakhimpur (1988) were established. Presently, the University has three more colleges under its jurisdiction, viz., Sarat Chandra Singha College of Agriculture, Chapar, College of Horticulture, Nalbari & College of Sericulture, Titabar. Similarly, few more regional research stations at Shillongani, Diphu, Gossaigaon, Lakhimpur; and commodity research stations at Kahikuchi, Buralikson, Tinsukia, Kharua, Burnihat and Mandira were added to generate location and crop specific agricultural production packages.

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  • ThesisItemOpen Access
    Isolation, characterization and morpho-biometric evaluation of pre-pubertal porcine spermatogonial stem cells in different culture media
    (College of Veterinary Science, Assam Agricultural University, Khanapara Campus, 2022-03) Lalmasawma, Timothy; Das, Arpana
    Testes samples were collected from 7-15 days old pre-pubertal male crossbred piglets (Local × Hampshire) for isolation, enrichment and in vitro culture of porcine spermatogonial stem cells (SSCs). Isolation of spermatogonial stem cells like cells was performed by double enzymatic digestion using four enzymes viz., collagenase, DNase I, hyaluronidase type II and trypsin-EDTA. Isolated cells were further enriched by differential plating and percoll density gradient centrifugation method. Enriched cells were cultured on Sertoli cell feeder layer in three different culture media. All the three media consisted of same concentration of DMEM, NEEA, L-glutamine, FBS, EGF and FGF, however in addition to these, LIF was added to media I, GDNF was added to media II and both LIF and GDNF were added to media III. Characterization of SSCs was done by alkaline phosphatase and immunoflourescence staining. Expression of SSC specific pluripotent marker genes by putative SSCs was also studied by RT-PCR study. Porcine SSCs were observed as dome shaped round or oval bodies on 5th -6th day of culture in all the three media. Clustering of cell was observed from 4th -5th day of culture and single, paired or multiple colonies were observed from 8-10th day of culture. The SSCs colonies appeared as mulberry, grape or rosette shaped with irregular distinct boundary from feeder layer on 15th - 19th day of culture in all the three media. However, the shape of the SSCs was found to be distorted with increase in the days of culture. The morphology of the SSC colonies was maintained best up to 30th day of culture in media III. The SSC colony number was recorded as 82.14 ± 2.91, 60.07 ± 2. 78 and 48.43 ± 1.96 on 5th, 15th and 30th day of culture respectively in media I. The corresponding numbers were 91.71 ± 2.62, 67.00 ± 2.05 and 57.29 ± 2.17 in media II and 105.93 ± 2.82, 80.21 ± 2.45 and 62.50 ± 2.09 in media III respectively. The SSC colony diameter was found to be 64.26 ± 0.85, 125.30 ± 1.88 and 123.01 ± 5.49μm on 5th, 15th and 30th day of culture respectively in media I. The corresponding values were 69.67 ± 1.12, 139.58 ± 3.93 and 142.08 ± 5.72μm in media II and 76.49 ± 1.61, 152.55 ± 4.07 and 172. 08 ± 4.96μm in media III respectively. The day of culture and culture media had significant effect (P≥0.01) on SSC colony number and significantly higher number of SSC colony was observed on day 5 and lower was on day 30 of culture in all the three media. The SSC colony number was significantly higher in media III containing both GDNF and LIF. The diameter of SSC colony differed significantly (P≥0.05) due to day of culture and culture media. The interaction between day of culture and culture media was also significant (P≥0.01). The colony diameter recorded on day 30 of culture was significantly higher, whereas lower number was recorded on day 5 of culture in all the culture media. Diameter of SSC colony obtained in media III was found to significantly higher and the lower diameter was obtained in media I on all the day of culture. It was observed that the SSC colony number decreased and colony diameter increased with the day of culture from day 5th to 30th day of culture in all the media.The putative SSCs in all the three media showed positive result for alkaline phosphatase and immunofluorescence staining. The putative SSCs in all the three media were also found to express SSC specific pluripotent marker genes viz., OCT4, SOX2, NANOG and maximum expression was observed in media III, however, no expression was recorded for c-KIT and PPARγ which were known to be the markers for differentiated SSCs. BAX4, an apoptopic marker gene was also expressed by putative SSCs in all the three media. Based on the findings of the present study, it may be concluded that a pure population of porcine spermatogonial stem cells (SSCs) could be obtained and successfully maintained in vitro up to 30th day of culture. Media III containing DMEM, FBS, NEAA, L-glutamin, FGF, EGF, LIF and GDNF was found to be the best for in vitro culture of porcine SSCs.
  • ThesisItemOpen Access
    Phenotypic characterization and polymorphism study of prolactin gene in native geese of Assam
    (2022) Gogoi, Ankita; Das, Bula
    Data pertaining to 1015 native geese of Assam were considered for morphometric characteristics, productive and reproductive performances, egg quality and carcass traits, along with screening of polymorphisms in 5'flanking region of Prolactin gene. Two plumage colours, cinnamon (62.38%) and white (37.62%) were seen. Bill colour was observed to be black (49.08%), orange (35.33%,), yellow (13.24%) and mixture of black and orange (2.35%). The skin was 100% white. Shank and feet colour were orange (75.32%), yellow (21.67%) and mixture of black and orange colour (3.01%). Black (60.14%), brown (28.49%) and blue (11.37%) eye colour was seen. The overall LSM ± SE for body weights at hatching, 4 week, 8 week, 6 month, 8 month,12 month of age were 89.85±0.11, 66.89±1.21, 1761.90±2.08, 3305.42±4.63, 3575.80±10.61 and 3804.84±3.91 g, respectively. The overall mean (cm) for bill length, bill width, knob diameter (at 12 months of age), head length, head width, neck length, neck girth, breast length, keel length, body length, body circumference, shank length and wingspan (3 to 6, 8 to 10 and 12 months of age) at the respective ages were 5.31 ± 0.018, 6.24 ± 0.01, 7.24 ± 0.012, 8.42 ± 0.014; 1.46 ± 0.010, 1.95 ± 0.008, 2.19 ± 0.009, 2.45 ± 0.009; 2.34 ± 0.006; 5.42± 0.019, 6.70 ± 0.018, 8.31 ± 0.019, 10.26 ± 0.018; 2.44 ± 0.009, 2.80 ± 0.011, 3.03 ± 0.010, 3.26 ± 0.012; 14.13 ± 0.031, 16.00 ± 0.032, 17.80 ± 0.026, 21.74 ± 0.027; 2.17 ± 0.012, 4.12 ± 0.013, 6.28 ± 0.011, 10.19 ± 0.019; 7.95 ± 0.022, 15.73 ± 0.044, 21.42 ± 0.023, 29.93 ± 0.022; 10.93 ± 0.024, 12.62 ± 0.023, 14.34 ± 0.025; 35.89 ± 0.049, 39.82 ± 0.040, 42.36 ± 0.043, 48.21 ± 0.037; 33.03 ± 0.033, 43.74 ± 0.06, 45.59 ± 0.033, 49.92 ± 0.029; 5.23 ± 0.015, 6.10 ± 0.016, 7.30 ± 0.015, 8.36 ± 0.015 and 89.89 ± 0.038, 101.54 ± 0.038 and 114.12 ± 0.037, respectively. Significant effects (P<0.01) of district and sex of bird on body weight and morphometric traits were observed. Age at first lay, annual egg production, clutch size and clutch interval were 323.02±0.302 days, 21.51±0.180 numbers, 9.87±0.098 numbers and 64.48±0.655 days, respectively. Two laying cycles, viz., September to October and December to February were observed. Egg weight, shell weight, shell thickness, shape index and specific gravity were 117.00±1.395 g, 14.19±0.225 g, 0.54±0.006 mm, 72.22±0.283 % and 1.09±0.001, respectively. Albumen Index, Haugh Unit, Yolk Index and yolk weight were 0.06±0.001, 59.79±0.726, 0.34±0.007 and 61.98±1.045, respectively. Age at slaughter (days), pre-slaughter weight (g), shrinkage (%), dressing percentage (%), evisceration loss (%) and ready to cook yield (%) in gander were 411.40 ± 4.26, 4192.80 ± 69.87, 4.36 ± 0.05, 67.10 ± 1.14, 7.58 ± 0.58 and 70.43 ± 1.05, respectively. The corresponding values in geese were 338.00 ± 21.48, 3878.40 ± 36.06, 4.76 ± 0.32, 66.11 ± 1.01, 7.02 ± 0.73 and 70.28 ± 1.24. In gander, yield of cut up parts on live weight (%) were 17.62 ± 0.19, 7.68 ± 0.14, 6.58 ± 0.10, 13.56 ± 1.29, 4.62 ± 0.12 and 8.05 ± 0.21 for breast, drumstick, thigh, back, neck and wings respectively. The corresponding values on dressed weight (%) were 27.49 ± 0.56, 11.98 ± 0.29, 10.26 ± 0.13, 21.01 ± 1.66, 7.21 ± 0.23 and 12.55 ± 0.25, respectively. In geese, cut up parts yield to live weight (%) were 17.58 ± 0.28, 6.74 ± 0.14, 6.71 ± 0.10, 12.40± 0.50, 4.35 ± 0.16 and 7.87 ± 0.33 for breast, drumstick, thigh, back, neck and wings, respectively. The corresponding values as per dressed weight (%) were 27.94 ± 0.42, 10.71 ± 0.19, 10.67 ± 0.16, 19.67 ± 0.43, 6.93 ± 0.33 and 12.48 ± 0.41, respectively. Meat to bone ratio of 2.05 ± 0.01 was found in both the sexes. 100 percent broody behavior observed. Fertility and hatchability (TES) were 91.38 ± 6.83 and 86.50 ± 7.59%. Mortality rate were 22.58, 15.24 and 11.72 at 0 to 1, 1 to 8 and 8 to 20 weeks. Screening for polymorphism in 5'-flanking region of PRL revealed transversion of G to C at location 117 and transition of C to T at location 182.The native geese attained much higher body weight at 6 months and 12 months of age compared to other poultry species. Various studies may be undertaken to genetically characterize the goose populations and association studies of genes with production traits may be conducted. Geese have promising role as alternate species for backyard poultry meat production. The detailed study would help in development of breed descriptors and baseline reference for future studies.
  • ThesisItemOpen Access
    GENETIC STUDIES ON THE PERFORMANCE OF HD-K75 PIGS
    (College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, 2022-02) BAYAN, JYOTISHREE; Zaman, Galib Uz
    Pig farming in India is primarily a small scale unorganized rural activity and is an integral part of diversified agriculture particularly in the tribal belt of the country and have been contributing to improve the livelihood of poor and socially weaker section of the society including the tribal people of India. Pig farming in Assam is rapidly gaining momentum in recent years as the farmers are finding it a profitable enterprise. The present investigation was carried out on HD-K75 pigs (75% Hampshire inheritance and 25 % indigenous inheritance) that are bred and maintained in the All India Coordinated Research Project (AICRP) on pigs, ICAR, located at College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati-781022. The data were collected and compiled from the progenies of 44 sires and 114 dams maintained over a period of 6 years from 2012 to 2018. The objective of the investigation were to study some important traits of growth and reproduction and the effect of various non-genetic factors influencing these traits, determine heritability, genetic correlation and phenotypic correlation of some important growth and reproduction traits, to construct linear, partial and multiple regression equations and to predict adult body weights based on early body weights. Traits included in the study were body weights at birth, weaning, 1st, 2nd, 3rd, 4th, 6thand 8th months of ages, and daily body weight gains during pre-weaning (birth to weaning) and post-weaning periods (from weaning to 4th, 6th and 8th month of ages), age at sexual maturity, gestation period, farrowing interval, litter size at birth, litter weight at birth, litter size at weaning and litter weight at weaning. The overall mean body weight in HD-K75 pigs at birth, 1 month, weaning, 2 months, 3 months, 4 months, 6 months and 8 months of age were 1.001 ± 0.001 kg, 6.912 ± 0.011 kg, 9.666 ± 0.013 kg, 12.207 ± 0.007 kg, 18.324 ± 0.001 kg, 28.349 ± 0.052 kg, 51.177 ± 0.091 kg and 71.229 ± 0.110 kg respectively. The average daily body weight gains (ADG) in g during birth to weaning, weaning to 4th month, weaning to 6th month and weaning to 8th month of ages were 206.299 ± 0.311, 237.294 ± 0.773, 299541 ± 0.700 and 311.206 ± 0.557 respectively. Least-squares analysis of variance revealed highly significant effect of season of birth, parity and sex on body weight at all ages and daily body weight gains at various stages of growth. Piglets born during winter season had higher body weight at birth, 1 month, 42 days, whereas piglets born during post-monsoon season had higher body weight at 2 months, 3 months, 4 months and 6 months of age and piglets born during monsoon season had higher body weight at 8 months of age. Pre-weaning ADG was higher in piglets born during monsoon season and lowest in animals born during pre-monsoon season. The ADG during 42 days to 4th month and 42 days to 6th month were found to be higher in piglets born during post-monsoon season and lowest in piglets born during pre-monsoon season. Piglets born in second parity had higher body weight at 3 months, 4 months, 6 months and 8 months whereas piglets born in third parity had higher body weight at birth and 1 month and piglets born in first parity had higher body weight at weaning and 2 months of age. Significantly higher ADG was found during pre-weaning period of growth in animals born in first parity. Further, the ADG from 42 days to 4th month, 42 days to 6th month and 42 days to 8th months of age were found to be higher in animals born in second parity and revealed significant difference with the animals of first and third parities. Males showed higher body weight and higher ADG than females in all stages of growth. ii The h2 estimates for body weight and ADG at various stages of growth in the present study were moderate to high in most of the cases which indicated that the population under study possess good amount of additive genetic variance and there is scope of genetic improvement of the herd in terms of growth traits and ADG at various stages using adequate methods of selection by incorporating these estimates. The phenotypic correlations among body weights at various ages were moderate and positive in some cases and negative in some cases. The phenotypic correlations among ADG at various stages of growth were moderate and positive in some cases and negative in some cases. The genetic correlations among body weights at various ages of growth were low to high and positive in some cases and negative in some cases. The genetic correlations among ADG at various stages of growth were moderate and positive in some cases and negative in some cases. The overall means for age at sexual maturity, gestation length and farrowing interval were found to be 205.294 ± 1.054, 112.70 ± 0.119 and 216.781 ± 2.565 days respectively. Effect of season of birth on age at sexual maturity was found to be non-significant as indicated by least square analysis of variance. Non-significant effect of season of birth and parity on gestation period was observed in the present study in HD-K75 pigs. Least-squares analysis of variance revealed significant difference between the various seasons under study in respect of farrowing interval. Sows that farrowed during post-monsoon season had significantly longer farrowing interval and differed significantly with other seasons and the shortest farrowing interval was observed in sows that farrowed during monsoon season. Least square analysis of variance revealed that the effect of parity on farrowing interval in the present study was non-significant. The h2 estimates of age at sexual maturity, gestation length and farrowing interval for HD-K75 pigs was low to moderate in magnitude. The phenotypic correlation among the reproduction traits were found to be low and positive in most cases. The genetic correlation among the reproduction traits were found to be moderate and positive in most cases. The overall means for litter size at birth, litter size at weaning, litter weight at birth and litter weight at weaning were found to be 7.747 ± 0.088, 7.556 ± 0.093 numbers and 7.804 ± 0.084 and 74.644 ± 0.0886 kg respectively. Least-squares analysis of variance revealed significant effect of season of birth on litter size at birth, litter size at weaning, litter weight at birth and litter weight at weaning. Piglets born during pre-monsoon season showed highest litter size at birth and weaning. Piglets born during post-monsoon season and winter season showed highest litter weight at birth and litter weight at weaning. Further, litter size at birth, litter size at weaning, litter weight at birth and litter weight at weaning were found lowest during monsoon season. Least-squares analysis of variance revealed that parity had significant effect on litter size at birth, litter size at weaning, litter weight at birth and litter weight at weaning. Piglets born in third parity showed highest and piglets born in first parity showed lowest litter size at birth, litter size at weaning, litter weight at birth and litter weight at weaning respectively. The h2 estimates of litter size at birth and litter size at weaning in HD-K75 pigs in the present study were found to be low in magnitude. The h2 estimates of litter weight at birth and litter weight at weaning were found to be medium in magnitude. The phenotypic correlations among the litter traits were found to be high and positive in most cases. The genetic correlations among the litter traits were found to be moderate to high and positive in most cases. Prediction equations were developed using post-weaning body weights at 6 months (Y1) and 8 months (Y2) of ages as dependent variables based on pre-weaning body weights at birth (X1), 1 month (X2), 42 days (X3), 2 months (X4) and 3 months (X5) of age as independent variables in various combinations. For prediction of adult body weights on the basis of body weights at early ages in HD-K75 pigs, linear, partial and multiple regression equations were developed. The linear regression equations for predicting body weights at 6 months of age had comparatively higher R2 values than 8 months of age in HD-K75 pigs, but were not found to be reliable as the R2 values were less than 60 %. The partial regression equations for predicting body weights at 8 months of age had comparatively higher R2 values than 6 months of age and were found to be more reliable. All the multiple regression equations developed to predict the adult body weight at 8 months of age can be reliably used when 3-5 independent variables are considered. Multiple regression equations developed to predict 8 month body weight showed highest reliability with R2 values ranging from 70.87 to 90.56 %. High R2 values indicates that the 8 month body weight can be predicted more efficiently than 6 month body weight. The multiple regression equations for predicting body weight at 8 months using 3 independent variables viz. body weight at birth, 1 month and weaning showed high R2 value of 90.21 % which was found to be highly reliable and the best combination, though higher R2 values were obtained in multiple regression equations using 4 and 5 independent variables.
  • ThesisItemOpen Access
    GENETIC STUDIES ON GROWTH PERFORMANCE OF CROSSBRED PIGS
    (College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, 2022-01) Rongpi, Racy; Ferdoci, A. M.
    The present study was carried out in 1025 piglets belonging to two genetic groups viz. Hampshire crossbred and crossbred of Tamworth and Desi (TND) pigs that were being bred and maintained at the Regional Pig Breeding Farm, Kyrdemkulai, Meghalaya. Performance records of 379 and 646 piglets born to 136 gilts/dams and 25 sires belonging to the two genetic groups during the year 2016-2019 were studied with a view to assess the genetic and phenotypic parameters of growth traits viz. body weights at different ages and daily body weight gains during pre-weaning and post-weaning periods. The overall least-squares means for body weight(kg) at birth, 4th week, 8th week, 12th week, 16th week, 20th week and 24th week of age were found to be 1.247±0.007, 5.615±0.013, 11.302±0.032, 17.246±0.029, 23.349±0.053, 30.584±0.064 and 38.528±0.057 respectively. The overall least The overall least The overall leastThe overall least The overall least The overall least The overall leastThe overall least -squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight squares means (LSM) for daily body weight gain dur gain dur gain dur ing the period from birth to 8 ing the period from birth to 8 ing the period from birth to 8 ing the period from birth to 8 ing the period from birth to 8 ing the period from birth to 8 ing the period from birth to 8 ing the period from birth to 8 ing the period from birth to 8th week, 8 week, 8week, 8 week, 8th to 24 to 24 th week and birth to 24 week and birth to 24week and birth to 24 week and birth to 24week and birth to 24 week and birth to 24 week and birth to 24 week and birth to 24 th week of week of week of week of week of growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 growth period were found to be 179.532±0.528, 243.0.20±0.462 and 221.866±0.335 respectively. respectively. respectively.respectively. respectively. respectively. respectively. The least The leastThe least The least -sq uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect genetiuares analysis of variance showed highly significant effect genetiuares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect genetiuares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect genetiuares analysis of variance showed highly significant effect genetiuares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect genetiuares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect genetiuares analysis of variance showed highly significant effect genetiuares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect genetiuares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti uares analysis of variance showed highly significant effect geneti c group on body weight at all ages except 12 group on body weight at all ages except 12group on body weight at all ages except 12 group on body weight at all ages except 12 group on body weight at all ages except 12 group on body weight at all ages except 12 group on body weight at all ages except 12group on body weight at all ages except 12group on body weight at all ages except 12 group on body weight at all ages except 12group on body weight at all ages except 12 group on body weight at all ages except 12group on body weight at all ages except 12group on body weight at all ages except 12 group on body weight at all ages except 12 group on body weight at all ages except 12group on body weight at all ages except 12 group on body weight at all ages except 12group on body weight at all ages except 12 group on body weight at all ages except 12group on body weight at all ages except 12 group on body weight at all ages except 12 th and 16and 16 and 16 th week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher week of age. Significantly higher body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of body weight was observed in Hampshire crossbred pigs. The least squares analysis of variance f variance f variance f variance fvariance fvariance for effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly sior effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si or effect of genetic group on daily body weight gain showed highly si gnificant gnificant gnificant difference between 8 difference between 8 difference between 8difference between 8difference between 8 difference between 8difference between 8difference between 8 difference between 8 difference between 8difference between 8 difference between 8th to 16 to 16 th week and birth to 24 week and birth to 24week and birth to 24 week and birth to 24week and birth to 24 week and birth to 24 week and birth to 24 week and birth to 24 th week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly week of growth period. Significantly higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs.higher daily body weight gain was observed in Hampshire crossbred pigs.higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs.higher daily body weight gain was observed in Hampshire crossbred pigs. higher daily body weight gain was observed in Hampshire crossbred pigs. The effect of The effect ofThe effect ofThe effect ofThe effect of The effect ofThe effect of The effect of sex was found to be significant at all stages of growth in respect osex was found to be significant at all stages of growth in respect osex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect osex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect osex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect osex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect osex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect osex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect osex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect osex was found to be significant at all stages of growth in respect o sex was found to be significant at all stages of growth in respect body weight and daily gains. body weight and daily gains. body weight and daily gains. body weight and daily gains. body weight and daily gains. body weight and daily gains. body weight and daily gains. body weight and daily gains. body weight and daily gains. body weight and daily gains. The least squares analysis of variance showed non The least squares analysis of variance showed nonThe least squares analysis of variance showed non The least squares analysis of variance showed non The least squares analysis of variance showed nonThe least squares analysis of variance showed non The least squares analysis of variance showed nonThe least squares analysis of variance showed nonThe least squares analysis of variance showed non The least squares analysis of variance showed nonThe least squares analysis of variance showed nonThe least squares analysis of variance showed nonThe least squares analysis of variance showed non The least squares analysis of variance showed non The least squares analysis of variance showed non The least squares analysis of variance showed non The least squares analysis of variance showed non The least squares analysis of variance showed non The least squares analysis of variance showed nonThe least squares analysis of variance showed nonThe least squares analysis of variance showed non The least squares analysis of variance showed nonThe least squares analysis of variance showed non The least squares analysis of variance showed non The least squares analysis of variance showed non-significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on significant effect of season on body weight at all ages except 20 body weight at all ages except 20 body weight at all ages except 20 body weight at all ages except 20body weight at all ages except 20body weight at all ages except 20 body weight at all ages except 20body weight at all ages except 20 body weight at all ages except 20body weight at all ages except 20body weight at all ages except 20 body weight at all ages except 20 body weight at all ages except 20body weight at all ages except 20 body weight at all ages except 20body weight at all ages except 20 body weight at all ages except 20body weight at all ages except 20 body weight at all ages except 20 th week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 week (between Season 1 and Season 3) 24and Season 3) and 24 and Season 3) 24and Season 3) and 24and Season 3) and 24and Season 3) and 24and Season 3) and 24 and Season 3) 24 and Season 3) 24and Season 3) and 24 and Season 3) 24 th week (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Pigleweek (between all the 3 seasons) of age. Pigle week (between all the 3 seasons) of age. Piglets born during May to October month ts born during May to October month ts born during May to October month ts born during May to October month ts born during May to October month ts born during May to October month ts born during May to October month ts born during May to October month ts born during May to October month ts born during May to October month ts born during May to October month ts born during May to October month (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during (Season 2) maintained significantly higher body weights than the animals born during February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). February to March (Season 1) and December January 3). The least squares The least squares The least squares The least squares The least squares The least squares The least squares The least squares analysis of variance showed significant effect sanalysis of variance showed significant effect s analysis of variance showed significant effect s analysis of variance showed significant effect s analysis of variance showed significant effect sanalysis of variance showed significant effect s analysis of variance showed significant effect s analysis of variance showed significant effect sanalysis of variance showed significant effect s analysis of variance showed significant effect s analysis of variance showed significant effect s analysis of variance showed significant effect s analysis of variance showed significant effect sanalysis of variance showed significant effect s analysis of variance showed significant effect sanalysis of variance showed significant effect sanalysis of variance showed significant effect s analysis of variance showed significant effect sanalysis of variance showed significant effect sanalysis of variance showed significant effect s analysis of variance showed significant effect season on daily body weight gain during eason on daily body weight gain during eason on daily body weight gain during eason on daily body weight gain during eason on daily body weight gain during eason on daily body weight gain during eason on daily body weight gain during eason on daily body weight gain during eason on daily body weight gain during eason on daily body weight gain during eason on daily body weight gain during various stages of growth except during birth to 8 various stages of growth except during birth to 8 various stages of growth except during birth to 8various stages of growth except during birth to 8 various stages of growth except during birth to 8 various stages of growth except during birth to 8various stages of growth except during birth to 8 various stages of growth except during birth to 8 various stages of growth except during birth to 8various stages of growth except during birth to 8 various stages of growth except during birth to 8 th week growth period. week growth period.week growth period. week growth period. week growth period. ii The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4The heritability estimates of body weight at birth, 4The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4 The heritability estimates of body weight at birth, 4th week, 8 week, 8week, 8 week, 8th week, 12 week, 12week, 12 week, 12 th week, week, week, 16 th week, 20 week, 20week, 20 week, 20 th week and 24 week and 24week and 24 week and 24week and 24week and 24 week and 24 th week of age were found as 0.392± week of age were found as 0.392±week of age were found as 0.392± week of age were found as 0.392± week of age were found as 0.392±week of age were found as 0.392± week of age were found as 0.392±week of age were found as 0.392± week of age were found as 0.392±week of age were found as 0.392±week of age were found as 0.392±week of age were found as 0.392± week of age were found as 0.392±week of age were found as 0.392±week of age were found as 0.392± week of age were found as 0.392± 0.128, 0.104±0.009, 0.128, 0.104±0.009, 0.128, 0.104±0.009, 0.128, 0.104±0.009, 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The 0.268±0.016, 0.408±0.022, 0.338±0.020, 0.130±0.013 and 0.940±0.042 respectively. The heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8 heritability estimates of daily body weight gain during birth to 8th week, 8 week, 8week, 8 week, 8th to 24 th week week week week and birth to 24and birth to 24 and birth to 24 and birth to 24 and birth to 24 th week growth period were found as 0.288±0. week growth period were found as 0.288±0.week growth period were found as 0.288±0. week growth period were found as 0.288±0. week growth period were found as 0.288±0. week growth period were found as 0.288±0. week growth period were found as 0.288±0. week growth period were found as 0.288±0. week growth period were found as 0.288±0.week growth period were found as 0.288±0.week growth period were found as 0.288±0.week growth period were found as 0.288±0. week growth period were found as 0.288±0. week growth period were found as 0.288±0.week growth period were found as 0.288±0. week growth period were found as 0.288±0. 020, 0.980±0.044 and 020, 0.980±0.044 and 020, 0.980±0.044 and 020, 0.980±0.044 and 020, 0.980±0.044 and 020, 0.980±0.044 and 0.844±0.040 respectively. 0.844±0.040 respectively. 0.844±0.040 respectively.0.844±0.040 respectively. 0.844±0.040 respectively. 0.844±0.040 respectively. 0.844±0.040 respectively. The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth The estimates of phenotypic correlation coefficients among body weight at birth with 4 th week, 8 week, 8week, 8 th week, 12 week, 12week, 12 week, 12week, 12 th week, 16 week, 16week, 16 th week, 20 week, 20week, 20 week, 20 th week and week andweek and week andweek and 24 th week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found as 0.056±0.034, 0.080±0.033, 0.271±0.032as 0.056±0.034, 0.080±0.033, 0.271±0.032 as 0.056±0.034, 0.080±0.033, 0.271±0.032 as 0.056±0.034, 0.080±0.033, 0.271±0.032 as 0.056±0.034, 0.080±0.033, 0.271±0.032 , 0.316±0.031, 0.081±0.036 and 0.061±0.037 , 0.316±0.031, 0.081±0.036 and 0.061±0.037 , 0.316±0.031, 0.081±0.036 and 0.061±0.037 , 0.316±0.031, 0.081±0.036 and 0.061±0.037 , 0.316±0.031, 0.081±0.036 and 0.061±0.037 , 0.316±0.031, 0.081±0.036 and 0.061±0.037 , 0.316±0.031, 0.081±0.036 and 0.061±0.037 respectively; between body weight at 4 respectively; between body weight at 4 respectively; between body weight at 4respectively; between body weight at 4 respectively; between body weight at 4 respectively; between body weight at 4 respectively; between body weight at 4respectively; between body weight at 4respectively; between body weight at 4respectively; between body weight at 4 respectively; between body weight at 4respectively; between body weight at 4respectively; between body weight at 4respectively; between body weight at 4 respectively; between body weight at 4 respectively; between body weight at 4 respectively; between body weight at 4 respectively; between body weight at 4respectively; between body weight at 4respectively; between body weight at 4 respectively; between body weight at 4th week with 8 week with 8week with 8week with 8week with 8 week with 8 week with 8th week, 12 week, 12week, 12 week, 12 th week, 16 week, 16week, 16 week, 16week, 16th week, 20 week, 20week, 20 week, 20 th week and 24 week and 24week and 24 week and 24week and 24 week and 24 th week as 0.274±0.032, 0.322±0.030, 0.350±0. week as 0.274±0.032, 0.322±0.030, 0.350±0.week as 0.274±0.032, 0.322±0.030, 0.350±0. week as 0.274±0.032, 0.322±0.030, 0.350±0.week as 0.274±0.032, 0.322±0.030, 0.350±0. week as 0.274±0.032, 0.322±0.030, 0.350±0. week as 0.274±0.032, 0.322±0.030, 0.350±0. week as 0.274±0.032, 0.322±0.030, 0.350±0. 029, 0.376±0.031 and 029, 0.376±0.031 and 029, 0.376±0.031 and 029, 0.376±0.031 and 029, 0.376±0.031 and 0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at 0.169±0.036 respectively; between body weight at0.169±0.036 respectively; between body weight at0.169±0.036 respectively; between body weight at 8th week with 12 week with 12week with 12 week with 12 week with 12 th week, 16 week, 16week, 16 week, 16 th week, week, week, week, 20 th week and 24 week and 24week and 24 week and 24week and 24 week and 24week and 24 th week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and week of age as 0.288±0.031, 0.550±0.024, 0.542±0.025 and 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 120.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 120.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 120.132±0.036 respectively; between body weight at 120.132±0.036 respectively; between body weight at 12 0.132±0.036 respectively; between body weight at 12 th week with 16 week with 16week with 16 week with 16 week with 16 th week, week,week, 20 th week week week and 24and 24 and 24 th week of age as 0.488±0.026, 0.481±0.028 and 0.095 week of age as 0.488±0.026, 0.481±0.028 and 0.095week of age as 0.488±0.026, 0.481±0.028 and 0.095week of age as 0.488±0.026, 0.481±0.028 and 0.095week of age as 0.488±0.026, 0.481±0.028 and 0.095 week of age as 0.488±0.026, 0.481±0.028 and 0.095week of age as 0.488±0.026, 0.481±0.028 and 0.095 week of age as 0.488±0.026, 0.481±0.028 and 0.095week of age as 0.488±0.026, 0.481±0.028 and 0.095week of age as 0.488±0.026, 0.481±0.028 and 0.095 week of age as 0.488±0.026, 0.481±0.028 and 0.095 week of age as 0.488±0.026, 0.481±0.028 and 0.095 week of age as 0.488±0.026, 0.481±0.028 and 0.095 week of age as 0.488±0.026, 0.481±0.028 and 0.095week of age as 0.488±0.026, 0.481±0.028 and 0.095 week of age as 0.488±0.026, 0.481±0.028 and 0.095 ±0.035 respectively; ±0.035 respectively; ±0.035 respectively; ±0.035 respectively; ±0.035 respectively; ±0.035 respectively; ±0.035 respectively; ±0.035 respectively; ±0.035 respectively; between body weight at 16 between body weight at 16 between body weight at 16between body weight at 16 between body weight at 16 between body weight at 16between body weight at 16 between body weight at 16 between body weight at 16between body weight at 16between body weight at 16 between body weight at 16 th week with 20 week with 20week with 20 week with 20 week with 20 th week and 24 week and 24week and 24 week and 24week and 24 week and 24 th week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 week of age as 0.488±0.027 and 0.179±0.036 respectively between body weight at 20and 0.179±0.036 respectively and between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20and 0.179±0.036 respectively and between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20and 0.179±0.036 respectively and between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20and 0.179±0.036 respectively and between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20 and 0.179±0.036 respectively between body weight at 20and 0.179±0.036 respectively and between body weight at 20and 0.179±0.036 respectively and between body weight at 20 and 0.179±0.036 respectively between body weight at 20 th week with 24 week with 24week with 24 week with 24 week with 24 th week o week oweek o week of age as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coefficage as 0.125±0.028. The estimates of phenotypic correlation coeffic age as 0.125±0.028. The estimates of phenotypic correlation coefficients among daily ients among daily ients among daily ients among daily ients among daily ients among daily ients among daily ients among daily body weight gain during birth to 8 body weight gain during birth to 8 body weight gain during birth to 8 body weight gain during birth to 8body weight gain during birth to 8 body weight gain during birth to 8 body weight gain during birth to 8 body weight gain during birth to 8body weight gain during birth to 8 body weight gain during birth to 8 body weight gain during birth to 8th week with 8 week with 8week with 8 week with 8 week with 8th to 24 to 24 th week, 8 week, 8week, 8 week, 8th to 24 to 24to 24th week with week with week with week with birth to 24 birth to 24 birth to 24 th week and birth to 8 week and birth to 8week and birth to 8 week and birth to 8week and birth to 8 week and birth to 8 week and birth to 8 week and birth to 8week and birth to 8th week with birth to 24 week with birth to 24week with birth to 24 week with birth to 24 week with birth to 24week with birth to 24 week with birth to 24 week with birth to 24week with birth to 24 th week were found as week were found as week were found as week were found as week were found as week were found as week were found as week were found as week were found as week were found as -0. 182±0.036, 0.425±0.030 and 0.813±0.012 respectively. 182±0.036, 0.425±0.030 and 0.813±0.012 respectively.182±0.036, 0.425±0.030 and 0.813±0.012 respectively. 182±0.036, 0.425±0.030 and 0.813±0.012 respectively.182±0.036, 0.425±0.030 and 0.813±0.012 respectively. 182±0.036, 0.425±0.030 and 0.813±0.012 respectively. 182±0.036, 0.425±0.030 and 0.813±0.012 respectively. 182±0.036, 0.425±0.030 and 0.813±0.012 respectively. The estimates of The estimates ofThe estimates ofThe estimates of The estimates of The estimates of The estimates of genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth genetic correlation coefficients among body weights at birth with 4 th week, 8 week, 8week, 8 th week, 12 week, 12week, 12 week, 12week, 12 th week, 16 week, 16week, 16 th week, 20 week, 20week, 20 week, 20 th week and 24 week and 24week and 24 week and 24week and 24 th week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found week of age were found as 0.259±0.019, 0.125±0.014, 0.700±0as 0.259±0.019, 0.125±0.014, 0.700±0 as 0.259±0.019, 0.125±0.014, 0.700±0 as 0.259±0.019, 0.125±0.014, 0.700±0 as 0.259±0.019, 0.125±0.014, 0.700±0 .006, 0.594±0.009, 0.130±0.002 and 0.170±0.010 .006, 0.594±0.009, 0.130±0.002 and 0.170±0.010 .006, 0.594±0.009, 0.130±0.002 and 0.170±0.010 .006, 0.594±0.009, 0.130±0.002 and 0.170±0.010 .006, 0.594±0.009, 0.130±0.002 and 0.170±0.010 .006, 0.594±0.009, 0.130±0.002 and 0.170±0.010 .006, 0.594±0.009, 0.130±0.002 and 0.170±0.010 respectively; among bo respectively; among bo respectively; among borespectively; among bo respectively; among bo respectively; among bo respectively; among borespectively; among borespectively; among bo respectively; among bo dy weight at 4 dy weight at 4 dy weight at 4 dy weight at 4dy weight at 4dy weight at 4 dy weight at 4th week with 8 week with 8week with 8 week with 8 week with 8 week with 8th week, 12 week, 12week, 12 week, 12 th week, 16 week, 16week, 16 week, 16 th week, 20 week, 20week, 20 week, 20 th week and 24 week and 24week and 24 week and 24week and 24 week and 24 th week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±week of age as 0.286±0.003, 0.389±-0.107±0.004, 0.502±0.005 and 0.107±0.004, 0.502±0.005 and 0.107±0.004, 0.502±0.005 and 0.107±0.004, 0.502±0.005 and 0.146±0.003 respectively; among body w 0.146±0.003 respectively; among body w 0.146±0.003 respectively; among body w 0.146±0.003 respectively; among body w0.146±0.003 respectively; among body w 0.146±0.003 respectively; among body w 0.146±0.003 respectively; among body w 0.146±0.003 respectively; among body w 0.146±0.003 respectively; among body w0.146±0.003 respectively; among body w 0.146±0.003 respectively; among body w 0.146±0.003 respectively; among body weight at 8eight at 8 eight at 8eight at 8eight at 8 eight at 8th week with 12 week with 12week with 12 week with 12 week with 12 th week, 16 week, 16week, 16 week, 16week, 16th week, 20 week, 20week, 20 week, 20 th week and 24 week and 24week and 24 week and 24week and 24 th week week week of age as of age as of age as of age as of age as of age as -0.078±0.002, 0.137±0.078±0.002, 0.137±-0.055±0.004 and 0.192±0.002 0.055±0.004 and 0.192±0.002 respectively, among body weight at 12 respectively, among body weight at 12 respectively, among body weight at 12respectively, among body weight at 12 respectively, among body weight at 12 respectively, among body weight at 12 respectively, among body weight at 12 respectively, among body weight at 12respectively, among body weight at 12 respectively, among body weight at 12 respectively, among body weight at 12 respectively, among body weight at 12respectively, among body weight at 12respectively, among body weight at 12 th week with 16 week with 16week with 16week with 16 th week, 20 week, 20week, 20 th week and 24 week and 24week and 24 week and 24week and 24week and 24 th week of week of week of week of age as age as age as age as age as -0.214±0.002, 0.589±0.003 0.214±0.002, 0.589±0.003 0.214±0.002, 0.589±0.003 and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at and 0.119±0.005 respectively; among body weight at 12 th week with 20 week with 20week with 20 week with 20 week with 20 th week and 24 week and 24week and 24 week and 24week and 24 week and 24 th week of age as week of age as week of age as week of age as week of age as week of age as week of age as week of age as week of age as week of age as -0.101±0.004 and 0.257±0.101±0.004 and 0.257±0.101±0.004 and 0.257±0.101±0.004 and 0.257±0.101±0.004 and 0.257±0.101±0.004 and 0.257± iii respectively and among body weight at 20 respectively and among body weight at 20 respectively and among body weight at 20respectively and among body weight at 20 respectively and among body weight at 20 respectively and among body weight at 20 respectively and among body weight at 20respectively and among body weight at 20 respectively and among body weight at 20respectively and among body weight at 20 respectively and among body weight at 20 respectively and among body weight at 20 respectively and among body weight at 20 respectively and among body weight at 20respectively and among body weight at 20respectively and among body weight at 20 respectively and among body weight at 20 th week with 24 week with 24week with 24 week with 24 week with 24 th week of age as 0.294±0.002. week of age as 0.294±0.002. week of age as 0.294±0.002. week of age as 0.294±0.002. week of age as 0.294±0.002. week of age as 0.294±0.002. week of age as 0.294±0.002. week of age as 0.294±0.002. week of age as 0.294±0.002. week of age as 0.294±0.002. The estimates of genetic correlation coef The estimates of genetic correlation coefThe estimates of genetic correlation coefThe estimates of genetic correlation coef The estimates of genetic correlation coef The estimates of genetic correlation coef The estimates of genetic correlation coef The estimates of genetic correlation coef The estimates of genetic correlation coefThe estimates of genetic correlation coefThe estimates of genetic correlation coef The estimates of genetic correlation coefThe estimates of genetic correlation coefThe estimates of genetic correlation coefThe estimates of genetic correlation coef The estimates of genetic correlation coefThe estimates of genetic correlation coefThe estimates of genetic correlation coefThe estimates of genetic correlation coef The estimates of genetic correlation coef The estimates of genetic correlation coefThe estimates of genetic correlation coef The estimates of genetic correlation coefficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during ficients among daily body weight gain during birth to 8 birth to 8 birth to 8th week with 8 week with 8week with 8 week with 8 week with 8th to 24 to 24 th week, 8 week, 8week, 8 week, 8th to 24 to 24 th week with birth to 24 week with birth to 24week with birth to 24 week with birth to 24 week with birth to 24 week with birth to 24 week with birth to 24 th week and birth week and birth week and birth week and birth week and birth week and birth week and birth to 8 to 8th week with birth to 24 week with birth to 24week with birth to 24 week with birth to 24 week with birth to 24 week with birth to 24 week with birth to 24 th week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, week growth period were found as 0.052±0.003, 0.526±0.002 and 0.077±respectively. 0.526±0.002 and 0.077±respectively. 0.526±0.002 and 0.077±respectively. 0.526±0.002 and 0.077±respectively.0.526±0.002 and 0.077±respectively. 0.526±0.002 and 0.077±respectively. 0.526±0.002 and 0.077±respectively. 0.526±0.002 and 0.077±0.002 respectively.