Genetic and non-genetic factors affecting the body weight of the Kurdish local chicken

Abstract

The current study was conducted at Kani –Graw private field around Erbil city –for the period from 01/09/2022 to 01/05/2023. The study was carried out to know the impact of changes in live weight of Kurdish local chickens due to sex and generation effects. The number of the Kurdish local chicks was two hundred and fifty chicks and their first generation. The effects cleared that, the live weight range substantially in accordance to the sex and generation of the chicks and their interactions especially at some stage in the period from one to eighteen weeks (P<0.01). Also, the live weight in male greater than females and accelerated steadily from zero to eighteen week of age the value the closing weight used to be 1704.06±11.83g and 1380.00±20.50g for males and females parents, respectively and 1649.69±15.64g and 1299.22±10.30g for males and females in 1st generation, respectively. Heritability estimate (h2) indicated that, the heritability estimates for live weight trait. Estimates of h2 two values had been average to excessive the value it ranged from 0.27 to 0.41 for live weight.