Year: 2018 | Month: April | Volume 8 | Issue 2
Genetic Parameters for Reproductive Traits in Indigenous Uttara Chickens
Abstract:
The present study was carried out by utilizing 25 sires and 200 dams at the Instructional Poultry Farm (IPF), of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar from July 2014 to February 2016 using 3836 eggs using MMLSML computer programme. The purpose of this study was the estimation of genetic and phenotypic parameters of reproductive traits in indigenous Uttara chickens. The mean percentages for FERT, HFES, HTES, ASM and WSM were 70.09 ± 0.75, 68.80 ± 0.98, 49.71 ± 1.08 %, 171.24 ± 0.13 days and 1408.67 ± 0.92 g respectively. The small standard error for ASM indicated close uniformity in age at sexual maturity of the flock and is indicative of better managemental practices being followed at the farm. The highest heritability estimate (h2) was 0.36 ± 0.02 for HTES. Genetic correlations for FERT with HFES (0.61 ± 0.03), HFES with HTES (0.92 ± 0.06) and FERT with HTES (0.86 ± 0.08) were positive and significant. Individuals with high breeding value for HTES would have high breeding values for HFES and FERT because of the high genetic association between them. These results suggest that HTES should be included as a selection criterion in genetic breeding programs to improve the reproductive performance of chickens, because HTES had the highest heritability estimate and high genetic correlation with FERT and HFES, and it is the easiest to measure.
© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Print This Article Email This Article to Your Friend
