BEHAVIOURAL INDUCTION OF OVULATION IN THE OESTROUS RABBIT

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Abstract
The incidence of ovulation was determined among oestrous "Dutch-belted" does following exposure to varying degrees of behavioural stimulation short of coitus. The mounting of does by a male did not induce ovulation even though on more than 240 occasions the females assumed the fully arched position during which vaginal penetrations was prevented by deflection of the males'' hind quarters. Receptive females did not ovulate after thirty-five exposures as teasers for semen collection by artificial vagina, or if retained in close proximity to the male in addition to being mounted once daily over a 2-week period. Ovulation did occur among submissive oestrous does if they were repeatedly mounted by oestrous or anoestrous does while caged in pairs for periods ranging from 1 to 17 days, but ovulation was not observed among females that assumed only the dominant role.

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