Kha năng san xuât gà Hắc Phong thế hệ xuât phát

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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.14-19

Bộ sưu tập: Metadata

ID: 337118

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Evaluation of the productive performance of the frst generationof Hac Phong chicken breed The study was conducted to evaluate the growth and productive performance of the firstgeneration of Hac Phong chicken breed. The results indicated that survivability of young chicksbetween rooster line and hen line group were 95.60 and 95.70% at 0-8 weeks and 98,00 and 98.40%at 9-20 weeks. The body weight of rooster line and hen line group were 28.5 g/head and 27.8 g/head at 01 day old chickens. At 8 weeks, the body weight of male and female reached 636.4 g/head,528.4 g/head of rooster line group and 633.4 g/head, 528.4 g/head of hen line group. At 19 weeks thecorresponding values were (1,248.0 and 1,032.0g) and (1,210.0 and 953.5g). Feed intake to 8 weekscombined with male and female chickens were 1,706.00 g/head of rooster line group and 1,682.00 g/head of hen line group. At 9-20 weeks, data for feed intake of rooster line and hen line group were(5,830.00 g/male and 5,283.00 g/female) and (5,764.00 g/male and 5,219.00 g/female), respectively. Ageat laying eggs reached 136-138 days of age. Egg production and egg-laying rate, respectively, ranged147.50-147.70 eggs/hen/72 weeks and 40.30-40.60% with consumption of 2.49kg feed/10 eggs. Eggweight at 38 weeks ranged 42.20-42.50 g/egg. The percentage of fertilized eggs reached 94.50-94.70%.The percentage of hatched eggs/total eggs and the rate of hatched eggs/fertilized eggs ranged 83.30-84.40% and 88.10-89.10%. The number of the best quality chicks/total eggs was 75.4-078.50%.Nghiên cứu nhằm đánh giá khả năng sản xuất của gà Hắc Phong thế hệ xuất phát nuôi tại Trạithực nghiệm Phân viện Chăn nuôi Nam Bộ. Kết quả cho thấy giai đoạn 0-8 tuần tuổi, tỷ lệ sốnggiữa nhóm dòng trống và dòng mái đạt 95,60 và 95,70% và 9-20 tuần tuổi là 98,00 và 98,40%. Khốilượng 01 ngày tuổi là 28,5 g/con đối với dòng trống và 27,8 g/con đối với dòng mái. Đến 8 tuần tuổi,dòng trống đạt 636,4 g/con trống và 528,4 g/con mái
dòng mái là 633,4 g/con trống và 528,4 g/conmái. Ở 19 tuần tuổi, tương ứng là (1.248,0 g/con trống
1.032,0 g/con mái) và 1.210,0 g/con trống
953,5 g/con mái. Lượng thức ăn tiêu thụ cho dòng trống và mái giai đoạn 0-8 tuần tuổi là 1.706,0 g/con và 1.682,0 g/con
giai đoạn 9-20 tuần tuổi là 5.830,0 g/con trống
5.283,0 g/con mái và 5.764,0 g/con trống
5.219,0 g/con mái tương ứng cho mỗi nhóm. Tuổi đẻ dao động 136-138 ngày. Năng suấttrứng đạt 147,50-147,70 quả/mái/72 tuần tuổi, tương ứng với tỷ lệ đẻ trung bình là 40,30-40,60% vàtiêu tốn thức ăn là 2,49 kg/10 quả trứng. Khối lượng trứng 38 tuần tuổi đạt 42,20-42,50 g/quả. Mộtsố chỉ tiêu ấp nở đạt được như sau: tỷ lệ trứng có phôi/trứng ấp là 94,50-94,70%, tỷ lệ nở/trứng ấplà 83,30-84,40%, tỷ lệ nở/trứng có phôi 88,10-89,10%, tỷ lệ gà loại 1/trứng ấp là 75,40-78,50%.

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