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Fear and stress measurements in pure and hybrid red-legged partridges

By J. L. Campo, S. Garcia Davila, M. Garcia Gil, O. Torres, J. Santiago Moreno

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Abstract

The purposes of this study were to examine the duration of induced tonic immobility (a reliable fear indicator considered a passive anti-predator behavioural trait) and two stress indicators (heterophil to lymphocyte ratio, and fluctuating asymmetry of leg length, middle-toe length, and wing length) in females and males of the red-legged partridge, and to analyze the differences between pure and hybrid populations. A total of 132 birds (66 pure and 66 hybrid partridges; 48 females and 84 males) at 52 weeks of age were used. There was a significant difference between pure and hybrid birds in tonic immobility duration ( P

Publication Title Applied Animal Behaviour Science
Volume 166
Pages 123-130
ISBN/ISSN 0168-1591
DOI 10.1016/j.applanim.2015.02.018
Language English
Author Address Departamento de Mejora Genetica Animal, Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria, Carretera de La Coruna km 7, 28040 Madrid, Spain.jlcampo@inia.es
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Tags
  1. Animal behavior
  2. Animals
  3. Asymmetry
  4. Birds
  5. Females
  6. Hybrids
  7. Indicators
  8. Males
  9. peer-reviewed
  10. traits
  11. vertebrates
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  1. peer-reviewed