Maternal social status and birth sex ratio in domestic pigs: an analysis of mechanisms

  title={Maternal social status and birth sex ratio in domestic pigs: an analysis of mechanisms},
  author={M. Mendl and A. Zanella and D. Broom and C. Whittemore},
  journal={Animal Behaviour},
  • M. Mendl, A. Zanella, +1 author C. Whittemore
  • Published 1995
  • Biology
  • Animal Behaviour
  • In support of the Trivers & Willard model of adaptive variation in birth sex ratio, recent research showed that high-ranking female domestic pigs, Sus scrofa, gave birth to a greater proportion of sons than low-ranking females. Differences in maternal nutritional status caused by differential access to food of high- and low-ranking females, or differences in adrenal activity as the result of stress experienced during agonistic encounters are two possible mechanisms underlying these findings… CONTINUE READING
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