Bulgarian Journal of Agricultural Science
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THE INFLUENCE OF THE LIBIDO OF POLISH LARGE WHITE BOARS ON THEIR EJACULATES
B. Szostak, A. Apostolov, J. Marchev
Abstract: In the paper the influence of the sexual behaviour of Polish Large White boars on the features of their ejaculates was defined. The boars taking part in the study were divided into three groups: I – high-libido boars (mounting the dummy within 3 min), II – medium-libido boars (peaceful mounting within 5 min) and III – low-libido boars (mounting the dummy within 10 min). The study found that ejaculate parameters of boars expressing various sexual behaviors were significantly diversified. The boars expressing the highest level of sexual behavior (group I) were characterized by the greatest amount of ejaculate, the greatest number of spermatozoa with progressive motility and the biggest number of insemination doses from one ejaculate. The biggest total number of defective spermatozoa was produced by the gonads of boars expressing the lowest level of
sexual behavior – 10.9%, making this group significantly different from groups I and II.
Keywords: boars; ejaculates; libido; quality
Date published: 2017-09-12
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