Effect of strategic feed supplementation on productive and reproductive performance in yak cows.
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S. Dong | R. Long | Z. Z. Hu | D. G. Zhang | X. Wang
[1] S. J. Yu,et al. Reproductive patterns of the yak. II. Progesterone and oestradiol-17 beta levels in plasma and milk just before the breeding season; also during normal and short oestrous cycles. , 1993, The British veterinary journal.