[The viability of Trichomonas fetus in frozen bull sperm].
D000818:Animals; D002417:Cattle; D005615:Freezing; D007315:Insemination, Artificial / Q000662:veterinary*; D008297:Male; D012661:Semen; D014021:Tissue Preservation; D014244:Trichomonas
Perezhivaemost' Trichomonas fetus v zamorozhennoĭ sperme byka.