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试验旨在研究日粮中不同代谢能水平对“京红1号”商品代蛋鸡育成期(10~16周龄)生长性能的影响。试验选用体质量相近和体况健康的10周龄初“京红1号”商品代蛋鸡450只,随机分为3个处理组(A、B和C),每个处理组5个重复,每重复30只,试验期为7周。3个处理组的粗蛋白水平均为16.5%,代谢能水平依次为11.30(A)、11.72(B)和12.13(C)MJ/kg。结果表明,B组蛋鸡试验末体质量和日增质量显著高于C组(P<0.05),且为最大;胫长随日粮代谢能水平的增加呈线性增加,C组显著高于其他2组(P<0.05)。综合考虑,“京红1号”商品代蛋鸡育成期(10~16周龄)适宜代谢能水平为11.72 MJ/kg。
The aim of this experiment was to investigate the effect of different metabolic levels of diet on the growth performance of “Jing Hong 1” commercial offspring in the breeding period (10-16 weeks old). A total of 450 early-stage “Jinghong 1” commercial broilers with similar body mass and healthy body condition were randomly divided into 3 treatment groups (A, B and C), 5 for each treatment group Repeat, 30 for each repeat, the test period is 7 weeks. The crude protein levels of three treatment groups were 16.5% and the metabolic energy levels were 11.30 (A), 11.72 (B) and 12.13 (C) MJ / kg, respectively. The results showed that the body weight and daily gain of group B were significantly higher than those of group C (P <0.05), and the maximum was found. The length of shank increased linearly with the increase of metabolizable energy of group C, which was significantly higher than that of group C 2 groups (P <0.05). Taken together, the “Jing Hong 1” commercial offspring breeding age (10-16 weeks old) suitable metabolic energy level of 11.72 MJ / kg.