Vol. 12, Issue 3 (2023)

Author(s):
Olympica Sarma, PP Dubey, Shakti Kant Dash, Saroj Kumar Sahoo and Puneet Malhotra

Abstract:
The 450 crossbred layer chickens used in this present study were selected from three genetic groups namely Desi cross1, Desi cross 2 and Punjab Red. The following economic parameters that were recorded during the period from 2020–2021 are Body weight (g) at first egg production, Age at sexual maturity (days), Weight of first egg (g), Egg production (no.) at 40th week, Egg weight (g) at 40th week (g), Egg production (no.) at 52nd week, Egg weight (g) at 52nd week. Weekly body weight (g) from 0 day to 20th week and 40th week. The estimation of phenotypic correlation was carried out using the WOMBAT software programme. Highly significant phenotypic correlations were found between BW 1 week, EP 40 week and FEW, BW 2 week and EW 40 week, BW 3 week and FEW, BW 10 week and EP 52 week, and BW 14 week and BW 40 week.