Ảnh hưởng của protein khẩu phần lên khả năng sinh trưởng và phát dục của chim Cút mái giai đoạn từ 4 đến 7 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.47-52

Bộ sưu tập: Metadata

ID: 337124

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Effect of dietary protein on growth performance and maturity of female quails 4-7 weeks of ageThis study was carried out to evaluate the effect of dietary protein on growth performance andmaturity of female quails from 4 to 7 weeks of age. The experiment was done on a household farmbelonging to Nam Hung hamlet, Minh Dieu ward, Hoa Binh District, Bac Lieu province. A totalof 108 female quails were randomly arranged to three dietary treatments with three replicates (12quails per unit) in a completely randomized design. Experimental quails were allocated to threediets that contain a similar metabolizable energy (ME) concentration (2,800 kcal/kg) but they havedifferent crude protein (CP) levels. The experimental treatments were: (1) A diet containing 20%CP (CP20), (2) A diet containing 22% CP (CP22) and A diet containing 24% CP (CP24). The resultsshowed that CP22 and CP24 were better body weight gain and feed conversion ratio than CP20(P<
0.05). In addition, CP22 and CP24 were higher rates of egg production than CP20 at 7 weeks ofage (P<
0.05). Interestingly, CP22 was a higher egg weight than CP24 (P<
0.05). It was concluded thatusing the diet containing 2,800kcal ME/kg and 22% CP to feed the female quails from 4 to 7 weeksof age was the most suitable.Nghiên cứu này được thực hiện để đánh giá ảnh hưởng của các mức protein thô (CP) khẩuphần lên khả năng sinh trưởng và phát dục của chim cút mái hậu bị 4-7 tuần tuổi. Thí nghiệm đượcthực hiện tại Hộ chăn nuôi, thuộc ấp Nam Hưng, xã Minh Diệu, huyện Hòa Bình, tỉnh Bạc Liêu.Tổng số 108 chim cút mái 4 tuần tuổi được bố trí ngẫu nhiên vào 3 nghiệm thức khẩu phần với 3lần lặp lại (12 con/đơn vị thí nghiệm) trong bố trí hoàn toàn ngẫu nhiên. Chim cút thí nghiệm đượccho ăn khẩu phần có mức năng lượng trao đổi (ME) giống nhau (2.800 kcal/kg) nhưng khác nhauvề hàm lượng CP. Các nghiệm thức của thí nghiệm là (1) Chim cút ăn khẩu phần chứa 20% CP(CP20), (2) Chim cút ăn khẩu phần chứa 22% CP (CP22) và (3) Chim cút ăn khẩu phần chứa 24% CP(CP24). Kết quả cho thấy chim cút mái trong các nghiệm thức CP22 và CP24 có tăng khối lượng, hệsố chuyển hóa thức ăn tốt hơn nghiệm thức CP20 (P<
0,05) và có tỷ lệ đẻ ở tuần tuổi thứ 7 cao hơnso với nghiệm thức CP20 (P<
0,05). Khối lượng trứng ở tuần tuổi thứ 7 của chim cút ở nghiệm thứcCP22 là lớn hơn ở nghiệm thức CP24 (P<
0,05). Như vậy, sử dụng khẩu phần có 2.800 kcal ME/kg và22% CP cho chim cút mái hậu bị giai đoạn từ 4 đến 7 tuần tuổi là thích hợp nhất.

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