Two experiments were conducted utilizing crossbred gilts to evaluate follicle characteristics at puberty and to determine the effect of exogenous estradio1-17β on embryonic mortality in the mature cycling gilt. Experiment 1 was conducted to compare preovulatory follicle numbers and sizes and follicular fluid concentrations of progesterone, estradio1-17β, plasminogen activator and...
An experiment was conducted to compare the reproductive
performance and serum concentrations of progesterone and estrogen of
mated first (n=18) and third (n=18) estrous gilts slaughtered in equal
numbers on days 3, 15 and 30 postmating. Fertilization rate did not
differ between mated first and third estrous gilts. Embryonic survival...