Abstract
Summary
Fertility of vaginal inseminations in rabbits treated with melengestrol acetate (MGA) was significantly improved when phenobarbital was administered at MGA withdrawal. Oxytocin administration after vaginal insemination in MGA-treated rabbits resulted in partial restoration of normal fertility. Ova transferred from superovulated donors to synchronous MGA-treated recipients failed to survive, but ova transferred to MGA-treated recipients in which pseudopregnancy was one day advanced in relation to the donors resulted in normal pregnancy.
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