A model for the description and prediction of the response of laying hens to amino acid intake.

摘要: Synopsis A model which describes the response of groups laying hens to different levels amino acid intake is presented. The based on assumption simple linear relationships between and output characteristics, egg production maintenance, for individual birds. a group birds then derived as average responses. shape this flock—response curve depends seven parameters, namely mean maximum (Ē max), variation in E max, body weight (W), W, correlation weight, two constants (a b) representing respectively quantities required unit maintenance weight. Three methods manipulating are described. These use (i) computer simulation procedure; (ii) exact solution (iii) some reasonable approximations practical application. describing e...