title: Age and body weight at sexual maturity in female white Leghorn chickens.
abstract: Age and body weight at sexual maturity were measured in females from two lines of White Leghorns known to differ in these traits. Within-line correlations between age and body weight at sexual maturity were not different from zero. The data demonstrated that egg-type chickens must reach a minimum age and body weight before commencing egg production - results consistent with those obtained for meat-type chickens and Japanese quail.
mesh_terms: D000375:Aging; D000818:Animals; D001835:Body Weight; D002645:Chickens / Q000235:genetics / Q000502:physiology*; D005260:Female; D012741:Sexual Maturation