Insemination Dose and Site With Frozen Semen Affects the Sperm Transport and Inflammatory Response in Mares?

Post-breeding inflammation is a physiological process that is elicited in the uterus of mares in response to the presence of spermatozoa [1]. The duration and severity of this inflammatory reaction is a critical factor in determining the ability of the mare to become and stay pregnant. Sperm were found in the oviducts as soon as 30 minutes after insemination [2]. However, pregnancy rate was lowered when mares ’ uterus were flushed within 2h after artificial insemination (AI), while the uterine lavage performed at 4h post insemination had no adverse effect on fertility [3].
Source: Journal of Equine Veterinary Science - Category: Veterinary Research Authors: Source Type: research