Variations in the Behavior of Pigs During an Open Field and Novel Object Test Article Swipe
Amy Haigh
,
Jen-Yun Chou
,
Keelin O’Driscoll
·
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.3389/fvets.2020.00607
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.3389/fvets.2020.00607
Tail biting is a serious welfare concern in pig production. It not only causes distress for victims, but may occur where pigs are unable to cope, and become biters. An animal's ability to cope with stressful situations may vary between individuals, but the behavioral response could be consistent across different fear eliciting situations. We exposed 75 pigs to open field (OF) and novel object (NO) tests at 14 weeks of age. Within each pen of pigs (n = 16 pens, 55 pigs/pen), 6 pigs were selected for testing using the following criteria: 3 pigs that had severe bite wounds (BITTEN), 1 confirmed biter (BITER), 1 pig which could be easily approached and trained to provide a saliva sample (BOLD) and 1 pig which was extremely evasive, and was unable to be trained to willingly provide a saliva sample (SHY). Given that responses may be consistent in different scenarios, we hypothesized that SHY pigs would display more characteristics of a fear response (i.e., less movement in the open field, more time spent by the door, and longer latency to approach the novel object) than human BOLD pigs. We also hypothesized that BITTEN pigs would behave similarly to SHY and BITERS similarly to BOLD. The BOLD and BITER pigs spent more time exploring (P < 0.05) and less time by the door (P < 0.01) than the BITTEN and SHY pigs. Although there was an overall increase in cortisol level from before to after the tests (P < 0.001), this was only significant for BITTEN (P < 0.001) and SHY (P < 0.05) pigs. Therefore, as hypothesized, for several measures, BOLD, and BITER pigs behaved similarly, and differently to SHY and BITTEN. However, the low sample size potentially meant that for several measures, although numeric differences were in the direction hypothesized, there were no statistical differences. Further work in which a greater number of BITER pigs were included in the sample, may elucidate our hypotheses more clearly, as to whether responses to fear tests in pigs could be associated with the likelihood of being a tail biter, or victim.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3389/fvets.2020.00607
- https://www.frontiersin.org/articles/10.3389/fvets.2020.00607/pdf
- OA Status
- gold
- Cited By
- 25
- References
- 22
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3048932014
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3048932014Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3389/fvets.2020.00607Digital Object Identifier
- Title
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Variations in the Behavior of Pigs During an Open Field and Novel Object TestWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2020Year of publication
- Publication date
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2020-09-03Full publication date if available
- Authors
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Amy Haigh, Jen-Yun Chou, Keelin O’DriscollList of authors in order
- Landing page
-
https://doi.org/10.3389/fvets.2020.00607Publisher landing page
- PDF URL
-
https://www.frontiersin.org/articles/10.3389/fvets.2020.00607/pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
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https://www.frontiersin.org/articles/10.3389/fvets.2020.00607/pdfDirect OA link when available
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Test (biology), Open field, Field (mathematics), Biology, Psychology, Mathematics, Ecology, Endocrinology, Pure mathematicsTop concepts (fields/topics) attached by OpenAlex
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25Total citation count in OpenAlex
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2025: 5, 2024: 5, 2023: 5, 2022: 5, 2021: 5Per-year citation counts (last 5 years)
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22Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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