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Birsa Agricultural University, Ranchi

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2000 - 20073
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Subject: Animal Genetics and Breeding × End date: 2007 × Start date: 2000 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    Genetic And Phenotypic Studies On some Productive And Reproductive Traints Of Murrah Buffaloes
    (Birsa Agricultural University, Ranchi, 2001) Sujit Kumar Kundu; R.S.Panday
    1)Significant effect of period on different economic traits and better performance during 1995-2000 suggested that managemental practices of the farm in recent years have improved over the past. (2) Most of the earlier components of lactation such as initial milk yield, peak yield, days to attain peak yield, total yield up to peak and rate of increase up to peak indicated that first calvers are unable to express their genetic potentials fully as compared to second and third calvers. (3) Season of calving did not influence the economic traits, indicating that the traits under study remain unaffected by seasonal variability. (4) Phenotypic correlations of early components of lactations such as initial milk yield, peak yield, days to attain peak yield, total yield up to peak, days to attain peak yield and rate of increase up to peak with lactation yield indicated that lactation yield could be judged from early components of lactations effectively. (5) No definite patterns in genetic and phenotypic trends was observed in this study is indicative of large magnitude of environmental variations over the years. (6) Estimates of expected breeding value suggested that regular progeny testing of sires should be done and only progeny tested sires should be encouraged for semen bank.
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    ThesisItemOpen Access
    Studies On Genetic And Phenotypic Parameters Of Some Economic Traits Of Goats
    (Birsa Agricultural University, Ranchi, 2000) Narendra Kumar; Dr.L.B.Singh
    1.Higher post-weaning body weight of Beetal halfbreds than Jamunapari halfbreds and purebred Black Bengal indicated that Beetal bucks could be utilized as improver for developing a potential breed of goat for meat production. 2 Significant effect of sire on post-weaning body weight up to 36 week of age indicated that the sire selection will be helpful in improvement of body weight of kids. 3 The decline in superiority in body weight of winter born kids over those born during summer and monsoon immediately after weaning indicated that winter born kids should be cared properly during early post-weaning period for better performance. 4. Higher body weight of F at 48-week of age is mainly due to difference in weaning weight and maternal influence during pre weaning period. 5.Post-weaning body weight of kids at 24, 36 and 48-week of age was positively associated with their birth weight. Dam's weight at kidding also had positive association with post-weaning weight up to 36-week of age. 6.Halfbreds were significantly taller and longer than the purebreds. 7. The post-weaning survivability of both the halfbreds was negatively associated with litter size at birth
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    ThesisItemOpen Access
    DNA POLYMORPHISM AT MHC LOCUS AND ITS ASSOCIATION WITH DISEASE RESISTANCE AND ECONOMIC TRAITS IN INDIGENOUS CHICKEN
    (Birsa Agricultural University, Kanke, Ranchi, Jharkhand, 2007) Singh, Geeta; Singh, S.K.
    The Major Histocompatibility complex (MHC) is a chromosomal region containing a family of genes that encode a group of glycoproteins involved in regulating a number of cellular processes of importance to the immune response and it has been associated with growth and reproductive traits in a variety of species including avian, swine, mouse, rat and human. Present investigation was carried out on a total of 1082 chicken belonging to seven genetic groups viz. Aseel (638), Kadaknath (755), desi (54), Black Australorp (603), the crosses of desi with other recognized breeds as Rhode Island Red (42), Black Australorp (62) and with Aseel (62) maintained at Avian Research and Development Centre (ARDC) of Ranchi Veterinary College, Birsa Agricultural University, Ranchi (Jharkhand). The data on various economic traits were recorded in all these genetic groups. Further the effect of chicken MHC genotype on growth and reproductive traits along with immunity of birds was also studied. The general performance were studied in all the seven genetic groups, while the relationship of chicken MHC with growth and reproductive performance were studied only on 50 chicken belonging to four purebred genetic groups.