This influence of estrus occurrence on ovulation and pregnancy rates has also been described by other studies inBos taurus[18 –20] andBos indicuscattle[6,7,21]. Thus, the presence of larger follicles at the intravaginal device removal and at
TAI following the synchronization protocol was associated with a greater occurrence of estrus, which was
associated with a greater ovulatory capacity and greater
pregnancy risk in suckledBos indicus cows.