The induction of oestrus and ovulation in the bitch using pregnant mare serum gonadotrophin and human chorionic gonadotrophin.
Seventeen bitches (11 anoestrous, 4 prepubertal, 1 pregnant and 1 postpartum) were treated with pregnant mare serum gonadotrophin (110 iu/kg) at weekly intervals up to the occurrence of oestrus or a maximum of 3 treatments. Oestrus was induced in 8/11 anoestrous bitches only. The between bitch ovarian response was very variable. Ovulation occurred in 7/8 PMSG induced oestrous bitches. The 3 oestrous bitches treated with human chorionic gonadotrophin (500 iu) at the start of oestrus had a better ovulatory response than those treated with PMSG alone.
D000818:Animals; D006063:Chorionic Gonadotropin / Q000494:pharmacology*; D004285:Dogs / Q000502:physiology*; D004971:Estrus / Q000187:drug effects*; D005260:Female; D006064:Gonadotropins, Equine / Q000494:pharmacology*; D010060:Ovulation / Q000187:drug effects; D010062:Ovulation Induction / Q000662:veterinary*; D011247:Pregnancy
D006063:Chorionic Gonadotropin; D006064:Gonadotropins, Equine