Boar did affect final pregnancy rate (P < 0.05) with 1 sire establishing a pregnancy rate between 81 and 100%, 4 of the sires between 61 and 80%, 3 of the sires between 41 and 60% and 1 sire between 21 and 40%. There was no effect of PGF2, parity, or estrus to ovulation interval on final pregnancy rate (P > 0.10)