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Vet Med Nauki. 1983;20(8):55-60.

[Sex behavior and reproduction of farm animals].

[Article in Bulgarian]


The sexual behaviour of farm animals was followed up both at loose-pasture raising and under industrial conditions. It was studied in estrus, in the search for a sexual partner, with regard to the tolerance of the female animals for the males in the sexual act, with regard to the herd hierarchy, the intraspecies relationships, and the condition of dominance, aggressiveness, and subordination. The role is stated of the presence of male animals in the herd for the regular course of the sexual cycle, and the shortening and synchronization of the estrus. Discussed is also the importance of the artificial visual, sound, olfactory, tactile and other stimuli of the behaviour of the male breeding animals in substantiating the coitus and the proper semen production. It was found that the reproductive process is largely dependent on on the sexual reactions of the animals, which requires a proper knowledge with regard to the substantiation of each sexual cycle. Thus, it is stated, higher conception and fertility rates are to be expected. It was also established that under the conditions of industrial technologies of raising the number of behavioural reactions in their use was strongly reduced because of the lowered contact between the individual groups, while the practice of artificial insemination thoroughly rules out the contact between the male and female animals.

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