High concentrate feeding and growth promotants for Brahman crossbred steers

Abstract

Two experiments using Box indicusXBos taurus steers were carried out to investigate the effectiveness of three growth promotants; zeranol, oestradiol-17~ and oestradiol benzoate-progesterone in association with high concentrate feeding. In contrast to most reported work none of the three treatments significantly (P>0.05) affected growth rate, final liveweight or fat depth.