All these parameters demonstrate the superior fertilizing capacity of semen cryopreserved in 1.0mMand 2.0mMBHTcompared with control semen. The highest pregnancy rate was achieved after insemination with semen from group II (93.3%). The pregnancy loss (28.6%) was highest in the control group compared with 0.0% and 14.3% in groups I and II, respectively.No differences were observed in the farrowing rate between groups I and II. The highest mean number of piglets bornwas obtained after insemination with the semen from group I (10.8/gilt).