Anorexia and sexual maturity in female white rock chickens. I. Increasing the feed intake.
作者： D. J. Zelenka , E. A. Dunnington , J. A. Cherry , P. B. Siegel
DOI: 10.1007/BF01260938
关键词: Feeding behavior 、 Anorexia 、 Sexual maturity 、 Juvenile 、 Internal medicine 、 Animal science 、 Food intake 、 Endocrinology 、 Biology 、 Body weight
摘要: Long-term selection for low juvenile body weight has resulted in a line of chickens where sexual maturity is retarded or prevented because anorexia.Ad libitum-fed pullets which had not commenced egg production by 240 days age were randomly assigned to be force-fed fedad libitum. Increasing food intake via force-feeding caused significantly greater proportion females commence than was noted forad controls. Moreover, those that lay, at onset earlier
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