On the basis of the research that has been conducted in PJSC “Krasnoyarskagroplem” in the winter-spring period, it is determined by the author that sperm production quality of the bull-sperm donors depends on various factors, including the species genotype and paratypical factors, for example, such as year season. The sperm production analysis of the Holstein breed bulls of different genetic lines on the anomalous spermium share (ASS) is conducted.
genotype, stud bull, sperm cell, anomalous sperm cell form share, native and cryopreserved sperm
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