Estrus induction and synchronization in canids and felids.
Indications for estrus induction in the dog and cat include potential missed breeding opportunities or conception failure, the treatment of primary or secondary anestrus, out-of-season breeding (feline) and synchronization of ovulation for embryo transfer programs. Reported methods for estrus induction in bitches and queens include the use of synthetic estrogens (diethylstilbesterol), dopamine agonists (bromocriptine and cabergoline), GnRH agonists (lutrelin, buserelin, fertirelin, deslorelin, and leuprolide), exogenous gonadotropins (LH, FSH, hCG, PMSG, and human menopausal gonadotropin) and opiate antagonists (naloxone). These methods vary widely in efficacy of inducing estrus as well as in the fertility of the induced estrus. The applicability of some of these methods for clinical practice is questionable. This review will summarize published reports on estrus induction in canids and felids, both wild and domestic, and provide an update on research using a long-acting injectable deslorelin preparation in bitches.
Kutzler
M A
MA
Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, 209 Magruder Hall, Corvallis, OR 97331, USA. michelle.kutzler@oregonstate.edu
D000818:Animals; D002415:Cats / Q000502:physiology*; D004285:Dogs / Q000502:physiology*; D018491:Dopamine Agonists / Q000494:pharmacology; D004971:Estrus / Q000502:physiology*; D004973:Estrus Synchronization; D005300:Fertility Agents, Female / Q000494:pharmacology; D007987:Gonadotropin-Releasing Hormone / Q000494:pharmacology; D006062:Gonadotropins / Q000502:physiology; D009292:Narcotic Antagonists / Q000494:pharmacology
D018491:Dopamine Agonists; D005300:Fertility Agents, Female; D006062:Gonadotropins; D009292:Narcotic Antagonists; D007987:Gonadotropin-Releasing Hormone