Induction and synchronization of estrus with exogenous hormones and sexual biostimulation at weaning in multiparous sows
Journal Title: Abanico Veterinario - Year 2018, Vol 8, Issue 2
Abstract
The aim of the present study was to evaluate whether boar biostimulation is sufficient to stimulate the sexual response of multiparous sows at weaning. In general, independently of the experimental group, 70% of the sows responded to estrus. The percentage of females that responded to estrus was higher in the control group (CG), than in the biostimulated group (BG) (P < 0.05). The vocalizations and nudging were higher in the CG than in the BG, on days 3 and 5 (P < 0.05). On the other hand, the sexual behavior of the boar was greater when were exposed to CG than to BG of females (P < 0.05). There was an increase in days 3 and 5 in the nudging, anogenital sniffing, vocalizations and mounting without or with ejaculation in the male exposed to the females of the CG than to the BG (P < 0.05). In conclusion, the boar's sexual biostimulation is not enough to provoke the sexual response of sows during weaning.
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