Gérard Baril

TL;DR: Observations show that to increase progestagen level at the end of treatment did not improve estrus synchronization, and provide further evidence that treatments with too high proggestagen amounts can decrease fertility.

TL;DR: Repeated use of PMSG during the female life or during one given year leads to active immunization against PMSG decreasing the efficiency of ovarian stimulation out of breeding season.

TL;DR: The hypothesis that the day of onset of the ovulatory wave is related to or, at least, conditioned by the luteolysis and the decrease in plasma progesterone is supported, with a great variability in their onset and duration of Serrana goats.

TL;DR: Breeding season and non-breeding season washed sperm had a better survival and a better motility than those incubated with breeding season seminal plasma and the mild washing procedure used may be responsible for the incomplete removal of seminal plasma from the sperm environment.

TL;DR: The results suggest that the ultrasonographic appearance of CL is a reliable parameter for the assessment of luteal function in goats and both the characterization of echotexture and size of central cavity could be valuable tools to differentiate between phases of normal estrous cycles.