Phenotypic profiles of broiler stocks fed two levels of methionine and lysine.
Phenotypic profiles of broiler stocks fed two levels of methionine and lysine.
复制标题
饲喂两种水平的蛋氨酸和赖氨酸的肉鸡的表型特征。
DOI：
10.3382/ps.0630855
复制
发表时间：
1984
期刊：
影响因子：
4.4
通讯作者：
J. Cherry
中科院分区：
文献类型：
--
作者：
P. Siegel;E. Dunnington;D. Jones;C. O. Ubosi;W. Gross;J. Cherry
一个表型配置文件编译为八个商业肉鸡股票饲养的饮食含有两个水平的蛋氨酸和赖氨酸。股票饮食的相互作用是不重要的，大多数性状，虽然股票之间的差异有所放大时，他们被喂食的蛋氨酸和赖氨酸水平较低。固定年龄的饲料效率（体重/饲料消耗量）与体重、采食量、腿部疾病频率和腹部脂肪垫大小呈负相关。其与免疫和生理性状的关系因环境而异。性能的明显改善可能部分归因于增长率的提高，这使得肉鸡能够在更早的年龄达到上市年龄。
A phenotypic profile was compiled for eight commercial broiler stocks fed diets containing two levels of methionine and lysine. Stock by diet interactions were unimportant for most traits, although differences among stocks were somewhat magnified when they were fed the lower levels of methionine and lysine. Feed efficiency (body weight/feed consumption) to a fixed age was negatively associated with body weight, feed intake, frequency of leg disorders, and size of the abdominal fat pad. Its association with immunological and physiological traits varied with the environment. Apparent improvements in performance may be partially attributed to increases in growth rate, which have enabled broilers to reach market age at earlier ages.