Responses to novel situations of female and castrated male pigs with divergent social breeding values and different backtest classifications in barren and straw-enriched housing
| Autor: | I. Reimert, W.W. Ursinus, J. Elizabeth Bolhuis, T. Bas Rodenburg, Bas Kemp |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
fear reactions
laying hens animal-welfare growing-pigs multilevel selection Straw physiological-responses Physiological responses Developmental psychology Behavioral Ecology Gedragsecologie Animal science Food Animals Surgical castration WIAS environmental enrichment Adaptation Physiology individual behavioral-characteristics different coping characteristics Animal Science and Zoology Adaptatiefysiologie Psychology surgical castration |
| Zdroj: | Applied Animal Behaviour Science 151 (2014) Applied Animal Behaviour Science, 151, 24-35 |
| ISSN: | 0168-1591 |
| DOI: | 10.1016/j.applanim.2013.11.015 |
| Popis: | The growth of a pig is not only affected by its own genes, but also by the genes of itspen mates. This indirect effect on a pig’s growth is represented as social breeding value(SBV) in a newly developed breeding model. It has been hypothesized that pigs could affecttheir pen mates’ growth through their behavior. We investigated whether pigs selectedfor a relatively positive (+SBV) or negative genetic effect (-SBV) on the growth of theirpen mates and kept in either barren or straw-enriched pens differ in fearfulness. Effectsof coping style, as assessed in a backtest, and gender were also investigated. Pigs (n = 480)were subjected to a group-wise novel rope test and human approach test and individuallyto a novel environment test in which after 5 min a bucket was lowered from the ceiling.In the novel rope test +SBV pigs were faster than -SBV pigs to touch a rope (P |
| Databáze: | OpenAIRE |
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