2009-05-012009-05-012009-05-011977https://hdl.handle.net/10365/3861Castration of bulls for meat production has been practiced for hundreds of years. Spaying of heifers has been a rather sporadic practice. A recent surge of interest in this practice has prompted this review.North Dakota State UniversityLivestock productionCattleA Review...Spaying and Hormones in Heifer FeedingArticle