Author:
Tawfeq Esraa Mobasher,Sabri Al-Nuaimi Majid Ahmed
Abstract
Abstract
This study aimed to compare the productive performance of two local lines chickens (brown and black-feathered chickens) and laying brown Lohman strain and cross-breeding between them for the period from one day to six months old. The birds were divided into seven treatments and the study was on three life stages, the first of (day-8) weeks of age, the second (9-16) weeks and the third (17-24) weeks for the following traits: live body weight, weight gain, feed consumption, feed conversion ratio, and sex maturity, weight of the first egg weight, sexual maturity age, egg production HD%, egg mass, average egg weight for the seven groups. The results showed that there were significant superiority (P<0.05) in the most productive performance for the four ceosses hybrids compared to the pure lines. and it was noted that there was a significant positive correlation coefficient between the weight of The body at the age of six months and the weight of the first egg (0.80), the average egg weight of (0.79) and the weight of the first egg and the average egg production was (0.72) and The average weight of eggs and egg production (0.61).
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