Male sexual behavior contributes to the maintenance of high LH pulsatility in anestrous female goats - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Hormones and Behavior Année : 2009

Male sexual behavior contributes to the maintenance of high LH pulsatility in anestrous female goats

Résumé

The objective of this study was to determine the importance of male sexual behavior in stimulating LH secretion in anovulatory female goats. Two groups of females (n=10 per group) were each exposed to a buck in sexual rest and submitted to natural daylength. In one group, the buck was awake, whereas in the other group, it was sedated to prevent its sexual behavior. Two other groups of goats (n=10 per group) were exposed to sexually active bucks that had been exposed to 2.5 months of long days. In one group, the buck was awake, and in the other group, it was sedated. LH secretion was determined every 15 min from 4 h before introducing the bucks to 8 h after, then every 15 min again from 20 to 24 h after introducing the bucks. The bucks submitted to natural daylength did not stimulate LH secretion (P>0.05), whether they were sedated or not. In contrast, both the awake and the sedated light-treated bucks induced an increase (P<0.05) of LH pulsatility in the first 4 h following their introduction. However, pulsatility remained elevated until 24 h in the females exposed to the light-treated awake buck, whereas in the group with the light-treated sedated buck, pulsatility diminished (P<0.05) after the first 4 h of stimulation by the buck. In c

Dates et versions

hal-02660476 , version 1 (30-05-2020)

Identifiants

Citer

J. Vielma, Philippe Chemineau, Pascal Poindron, Benoit Malpaux, J.A. Delgadillo. Male sexual behavior contributes to the maintenance of high LH pulsatility in anestrous female goats. Hormones and Behavior, 2009, 56 (4), pp.444-449. ⟨10.1016/j.yhbeh.2009.07.015⟩. ⟨hal-02660476⟩
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