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Anand Agricultural University, Anand

Anand Agricultural University (AAU) was established in 2004 at Anand with the support of the Government of Gujarat, Act No.(Guj 5 of 2004) dated April 29, 2004. Caved out of the erstwhile Gujarat Agricultural University (GAU), the dream institution of Sardar Vallabhbhai Patel and Dr. K. M. Munshi, the AAU was set up to provide support to the farming community in three facets namely education, research and extension activities in Agriculture, Horticulture Engineering, product Processing and Home Science. At present there seven Colleges, seventeen Research Centers and six Extension Education Institute working in nine districts of Gujarat namely Ahmedabad, Anand, Dahod, Kheda, Panchmahal, Vadodara, Mahisagar, Botad and Chhotaudepur AAU's activities have expanded to span newer commodity sectors such as soil health card, bio-diesel, medicinal plants apart from the mandatory ones like rice, maize, tobacco, vegetable crops, fruit crops, forage crops, animal breeding, nutrition and dairy products etc. the core of AAU's operating philosophy however, continues to create the partnership between the rural people and committed academic as the basic for sustainable rural development. In pursuing its various programmes AAU's overall mission is to promote sustainable growth and economic independence in rural society. AAU aims to do this through education, research and extension education. Thus, AAU works towards the empowerment of the farmers.

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20061
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Subject: Livestock Production and Management × Author: BAROT, VASANTKUMAR NAVALJI × End date: 2021 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    STUDY ON PRODUCTION PERFORMANCE AND GENETIC PARAMETERS OF SYNTHETIC LINE OF WHITE LEGHORN
    (AAU, Anand, 2006) BAROT, VASANTKUMAR NAVALJI; PATEL, ASHOK M.
    The present study was carried out to investigate the production performance, inheritance and association among various economic traits in a synthetic strain of White Leghorn for five successive generations under Central Poultry Research Station Project at Department of Poultry Science, Anand Agricultural University, Anand. Number of pullets from first to fifth generation utilized as experiraental materials were 413 (37 Sire family), 446 (30 Sire family), 441 (37 Sire family), 449 (40 Sire family) and 440 (39 Sire family). The data obtained on these birds were analyzed, to obtain the estimates of the means, heritability and genetic and phenotypic correlations, through Least Square Analysis using LSMLMW and MIXED MODEL Computer programme. The least squares means for various economic traits in S1, S2, S3, S4 and S5 generations respectively were 1173.21 ±9.11, 1133.36 ± 9.64, 1214.75 ± 11.32, 1200.56 ± 8.56 and 1214.73 ± 5.45 g for BW20, 1514.10 ± 14.64, 1421.86 ± 14.70, 1450.10 ± 11.70, 1456.77 ± 11.96 and 1429.75 ± 7.79 g for BW40, 1525.63 + 14.89, 1477.94 ± 12.41, 1591.66 ± 16.39, 1593.30 ± 13.67, and 1538.53 ± 9.62 g for BW56, 1530.87 ± 19.08, 1487.32 ± 12.89, 1655.85 + 17.06, 1517.11 ± 16.22 and 1645.74 ± 9.44 g for BW72, 153, 150, 159, 151 and 151 days for AFE, 103.736 ± 0.784, 99.511 ± 1.051, 93.576 ± 0.933. 107.036 ± 0.729 and 104.923 ± 0.652 eggs for EN40, 180.730 ± 1.354, 185.623 ± 1.227, 179.663 ± 1.220, 196.590 ± 1.040 and 189.130 ± 1.021 eggs for EN56, 238.403 ± 2.150, 254.015 ± 2.133, 277.950 ± 1.151, 271.726 ± 1.634 and 266.933 ± 1.434 eggs for EN72, 46.235 ± 0.325, 50.139 ± 387, 49.134 ±0.310, 48.012 ±0.265 and 51.724 ± 0.158 g for EW32, 53.272 ± 0.356, 51.915 ± 0.319, 49.219 + 0.326, 50.356 ± 0.281 and 52.306 ± 0.165 g for EW40, 54.101 ± 0.372, 54.379 ± 0.401, 53.139 ± 0.384, 54.897 ± 0.301 and 55.777 ± 0.174 g for EW56, 51.962 ± 0.341, 54.908 ± 0.385, 56.542 ± 0.515, 52.593 ± 0.351 and 61.610 ± 0.224 g for EW72, Rs. 74.00, 95.00, 76.00, 33.00 and 40.00 for ROFC per bird. The heritability estimates for various traits were found to be 0.450 ± 0.168, 0.679 ± 0.203, 0.976 ± 0.229, 0.678 ± 0.192 and 0.427 ± 0.159 {BW20), 0.490 ± 0.174, 0.617 ± 0.194, 0.737 ± 0.203, 0.723 ± 0.197 and 0.573 ± 0.180 (BW40), 0.425 ± 0.168, 0.235 ± 0.128, 1.019 ± 0.235, 0.770 ± 0.204 and 0.533 ± 0.175 (BWse), 0.718 ± 0.241, 0.378 + 0.162, 0.837 ± 0.269, 0.773 ± 0.207 and 0.204 ± 0.127 (BW72), 0.482 ± 0.173, 0.720 ± 0.209, 0.354 ± 0.148, 0.330 ± 0.143 and 0.481 ± 0.167 (AFE), 0.246 ± 0.135, 0.212 ± 0.120, 0.364 ± 0.150, 0.349 ± 0.146 and 0.831 ± 0.i211 (EN40), 0.387 ± 0.162, 0.064 ± 0.091 , 0.162 ± 0.118 , 0.257 ± 0.133 and 0.901 ± 0.219 (ENse), 0.193 ± 0.171, 0.140 + 0.114, 0.190 ± 0.191, 0.097 ± 0.108 and 0.790 ± 0.210 (EN72), 1.199 ± 0.250 , 0.936 ± 0.243 , 0.832 ± 0.204 , 0.624 ± 0.185 and 0.660 ± 0.194 (EW32), 1.099 ± 0.243, 0.861 ± 0.234, 0.708 ± 0.204, 0.630 ± 0.186, and 0.551 ± 0.180 (EW40), 1.081 ± 0.251,1.102 + 0.264, 0.948 ± 0.228, 0.621 ± 0.186 and 1.187 ± 0.244 (EWse), 0.471 ± 0.235, 0.575 ± 0.220, 1.196 ± 0.299, 0.723 ± 0.204 and 0.588 ± 0.195 (EW72) in S1, S2, S3, S4 and S5 generation respectively. The genetic correlations amongst body weight traits (BW20, BW40, BW56 and BW72) were positive and high in magnitude and in desired direction. The genetic correlations of BW20 with other growth traits (BW40, BW56 and BW72) ranged from 0.475 ± 0.226 to 0.924 ± 0.054. The genetic correlations of BW40 with BWse and BW72 were ranged from 0.491 ± 0.213 to 1.176 ± 0.117 where as the same between BW56 and BW72were ranged from 0.940 + 0.162 to 1.227 ± 0.115. The estimates of genetic correlations between body weight at 20 weeks of age and age at first egg were found to be low positive to negative side in all the generation except for the fourth generation. Contrary to this, positive and low genetic and phenotypic association was found between BW40 and age at first egg. The genetic correlations between body weight at 72 week and AFE were found to be positive, favourable and in desired direction. The genetic correlations of EN40 with various growth traits (BW20, BW40, BW56 and BW72) ranged from - 0.631 ± 0.244 to 0.230 ± 0.314 whereas genetic correlations of EN72 with various growth traits (BW20, BW40, BW56 and BW72) ranged little wider from -0.765 ± 0.429 to 0.278 ± 0.444. The genetic correlations of growth traits (BW20, BW40, BW56 and BW72) with egg weight traits (EW32, EW40, EW56 and EW72) were positive and moderate to high in magnitude. Negative genetic correlation of high magnitude was reported between age at first egg and egg production up to 40 weeks. In opposition to this, positive genetic and phenotypic association between age at sexual maturity and egg weight was reported. The genetic correlations between egg production (EN40, ENse and EN72) and egg weight traits (EW32, EW40, EW56 and EW72) were negative and high in magnitude in fifth generation. The phenotypic association of egg number with body weight and egg weight traits were negative and low in magnitude compared to genetic association.