Was evaluated a response for quantity and quality of embryos in cows and heifers of dairy Gyr cattle. Were done two treatments with individuals distributed completely at random where heifers (T1, n = 8) and cows (T2, n = 6) were subjected to superovulation protocol (SOV) through of follicular wave synchronization and super-stimulation with 200 mg of p-FSH among the 4 and 7 day of protocol, in the 8 and 9 day was made