Title Effect of estrus induction on pregnancy rates in domestic bitches and queens.
Publication TypeJournal Article
Year of Publication2010
AuthorsKutzler, MA
JournalClinical Theriogenology
Volume2
Pagination191-207
ISSN2154-3968
Abstract

Reported methods for estrus induction in bitches and queens include the use of synthetic estrogens (diethylstilbesterol), dopamine agonists (bromocriptine and cabergoline), gonadotropin releasing hormone agonists (lutrelin, buserelin, fertirelin, deslorelin, and leuprolide), exogenous gonadotropins (luteinizing hormone, follicle stimulating hormone, human chorionic gonadotropin, pregnant mare serum gonadotropin, and human menopausal gonadotropin) and opiate antagonists (naloxone). These methods vary widely in efficacy of inducing estrus as well as in the pregnancy rates following the induced estrus. The applicability of some of these methods for clinical practice is questionable. This review will summarize published reports on estrus induction protocols in domestic bitches and queens for which pregnancy rates are known. Only a brief overview of normal female canine and feline estrous cycle physiology will be discussed and non-medical methods of estrus induction (e.g. dormitory effect in the bitch and light therapy in the queen) will be excluded.

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