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Social dominance of female goats affects their response to the male effect

By L. Alvarez, G. B. Martin, F. Galindo, L. A. Zarco

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The aim of this study was to assess the influence of social rank of anestrous goats on their interval to ovulation after exposure to males. Forty-five adult females were observed before and after the introduction of males to their pen. Behavioural sampling was used in both periods to record agonistic interactions. An index of success (IS) for each goat, based on its ability to displace other individuals was then calculated and three ranking categories were designated, low, medium, and high-ranking goats. When the goats were exposed to the male, scan sampling every 5 min was used to record the position of each goat with respect to the male. An index of association (IA) with the male was then calculated for each goat. The time of ovulation was determined through progesterone concentrations in samples taken daily for 30 days after the introduction of the males. The time of conception was retrospectively calculated after kidding. Analysis of variance and Mann-Whitney tests were used to compare the intervals from the introduction of the males to ovulation and to conception between categories. Spearman correlations were used to relate the time of ovulation with the indices of success and association, as well as within each index. High and medium ranking goats ovulated before low-ranking individuals (P<0.05). A total of 32 goats (76

Date 2003
Publication Title Applied Animal Behaviour Science
Volume 84
Issue 2
Pages 119-126
ISBN/ISSN 0168-1591
DOI 10.1016/j.applanim.2003.08.003
Language English
Author Address Centro de Ensenanza Practica e Investigacion en Produccion y Salud Animal, Cruz Blanca 486, San Miguel Topilejo, Tlalpan, Mexico 14500, D.F., Mexico.
Cite this work

Researchers should cite this work as follows:

  1. Animal behavior
  2. Animal reproduction
  3. Capra
  4. Concepts
  5. Female animals
  6. Goats
  7. Male animals
  8. Mammals
  9. ovulation
  10. peer-reviewed
  11. Ruminants
  12. Social Dominance
  1. peer-reviewed