1. Allaire, F. R., H. E. Sterwerf, T. M. Ludwick, and E. R. Rader. 1976. Variations in removal reasons and culling rates with age in dairy females. Unpublished mimeographed paper Amer. Dairy Sci. Ass. Ann. Meeting, Raleigh, North Carolina, June, 1976.
2. Effects of feeding melengestrol acetate (MGA3) on occurrence of estrus, fertility and milk yield in dairy cows;Boyd;J. Anim. Sci.,1970
3. MGA carry-over effects on postpartum cows;Brannen;J. Anim. Sci.,1974
4. Managing reproduction in dairy cattle: I. Progestogens for control of estrus in dairy cows;Britt;J. Dairy Sci.,1972
5. Effect of melengestrol acetate (MGA) on milk production and fertility in the lactating dairy cow;Curtiss;J. Dairy Sci.,1970