Dietary urea for dairy cattle IV. effect on reproductive hormones

Theriogenology - Tập 5 - Trang 213-226 - 1976
R.E. Erb1,2, H.A. Garverick1,2, R.S. Patton1,2, R.D. Randel1,2, E.L. Monk1,2, Martina I. Udo-Aka1,2, C.J. Callahan1,2
1Department of Animal Sciences, Purdue University, West Lafayette, Indiana 47907, USA
2Department of Veterinary Science Purdue University West Lafayette, Indiana 47907 USA

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