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Present status of the repeat-breeder cow problem

, : Present status of the repeat-breeder cow problem. J. Dairy Sci, 44: 2323-2329

Hansel alleges that the method of cycle synchronization by corpus luteum expulsion is precluded from wide application by the risk of bursal adhesion formation, also that the corpus luteum increases in size till the 16th day of the cycle. Earlier work on the synchronization of oestrus by daily doses of progestins given parenterally or orally usually resulted in reasonable synchronization, but poor fertility at the first oestrus, though the oral route was more promising.


DOI: 10.3168/jds.S0022-0302(61)90063-7

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