Control of sexual activity in ranch cows by intramuscular and intravaginal administration of progestagens

Hale, D.H.; Symington, R.B.

Journal of Reproduction and Fertility 18(2): 193-196

1969


ISSN/ISBN: 0022-4251
PMID: 4182921
DOI: 10.1530/jrf.0.0180193
Document Number: 471939
When tampons containing 200 mg CAP were inserted, 8 of 10 cows were in continuous oestrus, overt or silent, during the 18 days of treatment, and 2 of the 10 cows showed overt oestrus in the 5-10 days after treatment. By contrast, injection of 6 mg/day of CAP inhibited expression of oestrus in 10, and 6 of these showed overt heat in the 5-10 days after treatment.

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