Vol. 8, Issue 2 (2019)

Author(s):
Manjeet, DS Dalal, Vikram Jakhar, Ramkaran, CS Patil and Sunil Sharma

Abstract:
A study of white leghorn strain maintained at the poultry farm of department of Animal Genetics and Breeding, LUVAS, Hisar, was conducted to investigate the possibility of prediction of the 40 week egg production based on performance and cumulative part egg production traits. The performance traits studied were body week at 20 week of age (BW₂₀) and age at first egg (AFE) and cumulative part egg production traits were egg production upto 24 weeks of age (EP₂₄), egg production upto 28 weeks of age (EP₂₈), egg production upto 32 weeks of age (EP₃₂), egg production upto 36 weeks of age (EP₃₆) and egg production upto 40 weeks of age (EP₄₀). Multiple regressions analysis was used to predict the 40 week egg production from performance and cumulative part egg production traits. Prediction equation for 40 weeks egg production showed highest coefficient of determination (90%), when only EP₃₆ was entered in the prediction equation.