The present study aimed to analyze the influence of the postpartum period on the pregnancy rate of cows submitted to fixed-time embryo transfer (FTET). It was used one hundred thirty-one crossbreed embryo recipient cows, on the 79.35 th ± 28.0 days postpartum and BCS between 2.75 to 3.0. The cows received a hormonal protocol initiated on a random day of estrus cycle (D0), beginning with an intravaginal device containing 1.9 g of progesterone and intramuscular administration (IM) of 2 mg of estradiol benzoate. In D8, the intravaginal device was removed, and it was administered a 0.15 mg D-cloprostenol, 0.5 mg estradiol cypionate and 300 IU eCG IM. TheFTET of Senepol IVP embryos was performed on D17, without previous estrus observation. The recipient cows were divided into two experimental groups: until the seventh day postpartum (N = 70) and after the seventh day postpartum (N = 61). The pregnancy diagnosis was performed by transrectal ultrasonography (Mindray DP2200, 7.5 Mhz) on the 23 th day after ET. The pregnancy rate of the recipient's cows was 52% (68/131) and there was no difference (p>0.05) on the pregnancy rate of the recipient's cows regarding the embryo development stage, neither the postpartum period. In conclusion, the use of calving cows as embryos recipients may be a viable alternative, resulted in adequate pregnancy rates, optimizing the use of this animal category in embryo transfer programs.
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