Post-partum milk progesterone profiles in SahiwalxFriesian cows on different energy intake.
Progesterone (P4) concentration in 21 SahiwalxFriesian cows kept on three energy levels (n=7) were determined thrice weekly for 120 days after first calving using a simple direct radioimmunoassay in fat-free milk. Based on post-partum P4 profiles, resumption of ovarian activity (Mean ± S.D.) commenc...
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格式: | Conference or Workshop Item |
语言: | English |
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1984
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在线阅读: | http://psasir.upm.edu.my/id/eprint/17878/1/ID%2017878.pdf |
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