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| Indexado |
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| DOI | 10.3390/ANI11010127 | ||||
| Año | 2021 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Farm animals can perceive humans positively by observing another animal being positively handled. This study evaluated whether pigs acquire a positive perception of humans after observing either a high or low socially ranked conspecific receiving gentle handling. Seventy-five 21-week-old pigs were housed in 15 nursery pens (five pigs/pen) and randomly assigned to one of three pen treatments: Dominant Demonstrator Group (DDG), Subordinate Demonstrator Group (SDG) and Control Group (CG). Pigs from DDG and SDG observed a high and low socially ranked conspecific ("demonstrator"), respectively, while the demonstrator received gentle stroking and a sucrose solution for 10 min, twice a day for 5 weeks. Control group pigs received minimal human contact. Following treatment, the behavior and heart rate variability of non-demonstrator pigs were evaluated in response to a stockperson in an open-field test. Pigs from the DDG and SDG contacted the stockperson sooner (p < 0.001), spent more time investigating the stockperson (p < 0.05), accepted more stroking (p < 0.001) and exhibited a lower low/high frequency ratio (p = 0.015) compared to the CG. No differences in learning between the pigs from the DDG and SDG were found. These results suggest that pigs can learn to perceive humans positively through observational social learning, regardless of the demonstrator conspecific's social rank.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Luna, D. | Mujer |
Pontificia Universidad Católica de Chile - Chile
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| 2 | Gonzalez, Catalina | Mujer |
Pontificia Universidad Católica de Chile - Chile
|
| 3 | Byrd, Christopher J. | Hombre |
North Dakota State Univ - Estados Unidos
North Dakota State University - Estados Unidos |
| 4 | Palomo, Rocio | - |
Universidad de Chile - Chile
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| 5 | Huenul, Elizabeth | Mujer |
Pontificia Universidad Católica de Chile - Chile
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| 6 | FIGUEROA-HAMED, JAIME EDUARDO | Hombre |
Pontificia Universidad Católica de Chile - Chile
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| Fuente |
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| Fondo Nacional de Desarrollo Científico y Tecnológico |
| ANID |
| National Research and Development Agency |
| National Research and Development Agency (ANID) through the Programme FONDECYT Postdoctoral |
| Agradecimiento |
|---|
| This research was funded by the National Research and Development Agency (ANID) through the Programme FONDECYT Postdoctoral, grant number 3190048. |
| Funding: This research was funded by the National Research and Development Agency (ANID) through the Programme FONDECYT Postdoctoral, grant number 3190048. |