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

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Tác giả: Khoa học Kỹ thuật Chăn nuôi

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Kỹ thuật Chăn nuôi, 2023

Mô tả vật lý: tr.45785

Bộ sưu tập: Metadata

ID: 337115

Thêm vào giỏ Liên kết toàn văn

Đề tài được thực hiện tại trại gà huyện Phong Điền thành phố Cần Thơ từ tháng 5 đến tháng 12 năm 2022 nhằm đánh giá một số chỉ tiêu sinh sản của gà Ác. Có tất cả 400 cá thể gà mái được nuôi trên lồng theo phương thức cá thể giai đoạn 16-40 tuần tuổi. Kết quả nghiên cứu cho thấy gà Ác có tuổi thành thục sinh dục ở 111 ngày tuổi, trung bình tuổi đẻ đầu tiên của quần thể là 119 ngày tuổi và tỷ lệ đẻ đạt đỉnh cao ở 205 ngày tuổi. Giai đoạn từ 16-40 tuần tuổi, năng suất trứng trung bình là 69,3 quả/mái
tỷ lệ đẻ là 39,6%, tiêu tốn thức ăn/10 quả trứng là 3,0 kg. Trứng gà Ác có khối lượng trung bình 34,9 g/quả
tỷ lệ lòng đỏ đạt 31,3%
đơn vị Haugh là 81,2. Kết quả ấp nở cho thấy tỷ lệ trứng có phôi/trứng ấp trung bình là 86,4%
tỷ lệ nở/trứng ấp đạt 75,2%
tỷ lệ nở/trứng có phôi là 87,0% và tỷ lệ gà loại I/gà nở đạt 98,9%.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%.

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