Results: fertilization rates in the group of ejaculated and epididymal or testicular sperm were 0.78 ± 0.20% and 0.75 ± 0.24% (p> 0.05); in the group of fresh and frozen sperm were 0.77 ± 0.20% and 0.81 ± 0.16% (p> 0.05).