THE INDUCTION OF OESTRUS AND OVULATION IN THE BITCH USING PREGNANT MARE SERUM GONADOTROPHIN AND HUMAN CHORIONIC GONADOTROPHIN

Publisher Website
Google Scholar
Abstract
Seventeen bitches (11 anestrous, 4 prepubertal, 1 pregnant and 1 postpartum) were treated with pregnant mare serum gonadotropin [PMSG] (110 IU/kg) at weekly intervals up to the occurrence of estrus or a maximum of 3 treatments. Estrus was induced in 8/11 anestrous bitches only. The between bitch ovarian response was very variable. Ovulation occurred in 7/8 PMSG induced estrous bitches. The 3 estrous bitches treated with human chorionic gonadotropin (500 IU) at the start of estrus had a better ovulatory response than those treated with PMSG alone.