Vui lòng dùng định danh này để trích dẫn hoặc liên kết đến tài liệu này: http://115.74.233.203:81/tailieuso/handle/123456789/2223
Nhan đề: The interactive effects of threonine and crude protein level on apparent nutrients digestibility and nitrogen balance in local Muscovy ducks
Tác giả: Nguyen, Thi Kim Dong
Nguyen, Hoang Qui
Nguyen, Thuy Linh
Từ khoá: Chăn nuôi & Thú Y
Crude protein
Digestibility
Muscovy
Nitrogen retention
Threonine
Năm xuất bản: 2023
Nhà xuất bản: Veterinary Integrative Sciences
Trích dẫn: Kim, D. N. T., Hoang, Q. N., & Linh, N. T. (2023). The interactive effects of threonine and crude protein level on apparent nutrients digestibility and nitrogen balance in local Muscovy ducks: https://doi. org/10.12982/VIS. 2023.027. Veterinary Integrative Sciences, 21(2), 383-395.
Tùng thư/Số báo cáo: Chăn nuôi & Thú Y;
Tóm tắt: This study aimed to determine the effects of threonine (Thr) and crude protein (CP) on the apparent nutrients, amino acid digestibility, and nitrogen balance of local Muscovy ducks at 8 and 10 weeks of age. The study was a 3x2 factorial design for two phases with three levels of CP (17, 18, and 19% CP) and two levels of Thr (0.7 and 0.8% Thr) for the first phase while three levels of CP (15, 16, and 17% CP) and two levels of Thr (0.5 and 0.6% Thr) for the second phase. The birds were fed and given water ad libitum for the entire experiment. The results showed that CP and Thr increased apparent nutrient digestibility, especially for DM digestibility (P < 0.05). Besides, Thr addition also increased OM, and NDF digestibility (P < 0.05). In addition, nitrogen balance was better in high-dose Thr and CP diets (p<0.05). For amino acids, when increased Thr and CP levels, it increased the digestibility of Isoleucine, Threonine, and Valine (P < 0.05) while Thr levels increased Methionine, Phenylalanine, Serine, Tyrosine, and CP levels increased Isoleucine, Leucine, Lysine, Threonine, Valine, Alanine, Glutamic, Proline digestibility (P < 0.05). However, this study could not record any interactions between Thr and CP in the diet throughout the experiment (P > 0.05). It can be concluded that supplementation with 0.8% Thr and 19% CP for 5-8 weeks of age and 0.6% Thr and 17% CP for 8-10 weeks of age in the local Muscovy duck diet increased the digestibility of apparent nutrients and amino acids and balanced the nitrogen substance in the duck's body.
Định danh: http://115.74.233.203:81/tailieuso/handle/123456789/2223
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