NĂNG SUẤT SINH SẢN CỦA GÀ ÁC (Gallus gallus domesticus Brisson) GIAI ĐOẠN 16-40 TUẦN TUỔI

Trần Trung Tú1*, Lê Thanh Phương1 và Nguyễn Trọng Ngữ2

Abstract

The study was carried out at the chicken farm in Phong Dien district, Can Tho city from May to December, 2022 to evaluate some reproductive parameters to evaluate some reproductive parameters of Ac chickens. A total of 400 hens were raised in cages according to the individual method at the age of 16-40 weeks. The results showed that the at Ac chickens had sexual maturity at 111 days of age, the average age of first laying of the population was 119 days of age and the laying rate peaked at 205 days old. In the period from 16-40 weeks of age, the average egg yield was 69.3 eggs/hen; laying rate was 39.6%, feed consumption/10 eggs was 3.0kg. The eggs had an average weight of 34.9 g/egg; yolk ratio reached 31.3%; Haugh unit was 81.2. Incubation results indicated the average rate of fertile eggs/incubated eggs was 86.4%; hatched/incubated eggs reached 75.2%; hatched/fertile eggs was 87.0% and the rate of type I chicks/hatched chicks was 98.9%.