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

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...

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Bibliographic Details
Published in:Hormones and behavior 2009-10, Vol.56 (4), p.444-449
Main Authors: Vielma, Jesús, Chemineau, Philippe, Poindron, Pascal, Malpaux, Benoît, Delgadillo, José Alberto
Format: Article
Language:English
Subjects:
Analysis of Variance
Anestrus - blood
Anestrus - physiology
Animal behavior
Animal reproduction
Animals
Anovulation - blood
Anovulation - physiopathology
Behavioral psychophysiology
Biological and medical sciences
Caprine
Computer Science
Female
Fundamental and applied biological sciences. Psychology
Goats
Hormones
Hormones and behavior
Life Sciences
Luteinizing Hormone - blood
Luteinizing Hormone - secretion
Male
Male effect
Odorants
Periodicity
Photoperiod
Physical Stimulation
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Random Allocation
Reproductive seasonality
Sedation
Sexual behavior
Sexual Behavior, Animal - physiology
Sexual odor
Time Factors
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Summary: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
ISSN:0018-506X
1095-6867
DOI:10.1016/j.yhbeh.2009.07.015