Plasma progesterone profiles, ovulation rate, donor embryo yield and recipient embryo survival in native Saloia sheep in the fall and spring breeding seasons.

Abstract The response to superovulatory (SOV) and estrus synchronization (ES) treatments and the fertility of donor ( n =68) and recipient ( n =118) Saloia ewes was evaluated in the fall and spring breeding seasons. The proportion of acyclic ewes at treatment time was significantly higher in the spring than in the fall (42.6% versus 4.0%, P