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Sexual behaviour in female pigs.

Lene Juul Pedersen1

  • 1Danish Institute of Agricultural Sciences, Department of Animal Health, Welfare and Nutrition, Research Centre Foulum, PO Box. 50, DK-8830 Tjele, Denmark. lene.juulpedersen@agrsci.dk

Hormones and Behavior
|May 8, 2007
PubMed
Summary

Social interactions significantly influence pig reproductive behavior. While boar and sow cues synchronize estrus, social stress and fear, especially in subordinate pigs or due to human handling, can inhibit sexual motivation and reproductive success.

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Area of Science:

  • Animal Behavior
  • Reproductive Physiology
  • Ethology

Background:

  • Social dynamics play a crucial role in animal reproduction.
  • Understanding these mechanisms is key to improving livestock welfare and productivity.

Purpose of the Study:

  • To review the impact of social factors on estrus induction, synchronization, and sexual motivation in pigs.
  • To explore how social stress and fear influence reproductive behaviors in swine.

Main Methods:

  • Literature review of studies on social influences in pig reproduction.
  • Analysis of behavioral observations and physiological responses related to social interactions.

Main Results:

  • Social cues from boars and estrous sows can induce and synchronize estrus and ovulation.

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  • High social pressure and stress, particularly in subordinate pigs, inhibit sexual motivation.
  • Fear reactions, including fear of dominant individuals and humans, reduce sexual motivation and reproductive success.

    • Conclusions:

    • Social environment critically modulates sexual motivation and reproductive outcomes in pigs.
    • Management practices should consider social dynamics to mitigate stress and enhance reproductive performance.
    • Fear, whether social or human-induced, is a significant inhibitor of estrus and mating behavior in sows.