Influence of adaptation ability of bulls-inseminators on the results of their pedigree use
Abstract
The results of the pedigree use are presented 16 bulls-inseminators of Holstein breed depending on their adaptation ability. It is set that for the second year of the pedigree use bulls-inseminators with high resistance to stress are characterized greater activity of sperm, by the concentration of sperm, by the amount of sperm in ejaculate, by the less percent of marriage of sperm, by plenty of sperm, suitable for freezing, by the amount of high-quality doses of sperm from one ejaculate and by the best impregnating ability of sperm comparatively with the coevals of low resistance to stress type (Р>0,95-0,99).
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