肉仔鸡有效赖氨酸需要量的研究

Studies on the Available Lysine Requirement of Broiler Chicks

With 4 feedstuffs respectively, the adult roosters and male broiler chicks were force-fed to determine the available amino acid values. Then, the available lysine requirement of broiler chicks during the periods of 0-4 and 5-8 weeks was estimated for each sex. The results showed that the available lysine requirement of broiler chicks was 0.91% for the male, 0.81% for the female during the periods of 0-4 weeks; during the periods of 5-8 weeks, it was 0.87% for the male, 0.77% for the female to gain weight and 0.87% for high conversion efficiency. The availability of amino acid of one ingredient, provided by adult roosters with the force-fed method, was quite analogous to that ohe obtaieti by male broiler chicks and the results were reliable in formulating the broiler diet.