European Journal of Wildlife Research

, Volume 50, Issue 1, pp 13–17

Spleen size variations and reproduction in a Mediterranean population of wild boar (Sus scrofa)

  • P. Fernández-Llario
  • A. Parra
  • R. Cerrato
  • J. Hermoso de Mendoza
Original Paper

DOI: 10.1007/s10344-003-0028-6

Cite this article as:
Fernández-Llario, P., Parra, A., Cerrato, R. et al. Eur J Wildl Res (2004) 50: 13. doi:10.1007/s10344-003-0028-6

Abstract

We analysed spleen size variations of free-ranging wild boars from the west-central Iberian Peninsula during the hunting season (autumn and winter) in relation to the rut, the gestation effort and the attainment of sexual maturity by males and females. Females had larger spleens than males once they reached their sexual maturity. Individuals shot in winter had larger spleens than those shot in autumn, the start of the rutting period. In contrast to other reports, we found no influence of the reproductive status of adult females on their spleen sizes. Our findings may point to an influence of sex hormones, and possibly also stress hormones, and environmental factors on spleen development, mainly in adult and subadult males.

Keywords

Spleen size Seasonality Immunity Wild boar Sus scrofa Reproduction Mediterranean area 

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • P. Fernández-Llario
    • 1
  • A. Parra
    • 2
  • R. Cerrato
    • 2
  • J. Hermoso de Mendoza
    • 2
  1. 1.Departamento de Biología y GeologíaInstituto de Enseñanza Secundaria “Santa Lucía del Trampal”CáceresSpain
  2. 2.Departamento de Medicina y Sanidad AnimalUniversidad de ExtremaduraCáceresSpain

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