Living with low environmental complexity increases fear indicators in Nile tilapia
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.anbehav.2021.02.006 http://hdl.handle.net/11449/206055 |
Resumo: | Animals are often kept in conditions with low environmental complexity and for long periods in barren artificial environments. This has been shown to lead to poor welfare in many species of animals. We assessed the emotional responses of Nile tilapia, Oreochromis niloticus L., maintained for different intervals in a barren or enriched environment. Four groups of fish were tested individually for emotionality by inserting a novel object in the glass aquarium to assess behavioural responses, such as indicators of fear and exploratory behaviours. Fish kept for 7 weeks in barren environments showed behavioural indicators of fear in response to the novel object test performed in each isolated fish. Enriched environment increased the time investigating a novel object. The reduced time spent performing behaviours that indicate fear during the novel object test in fish kept in an enriched environment shows that the responses were a consequence of lack of stimuli, not necessarily social isolation. More complex environments improve the affective states and welfare of tilapia. |
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Living with low environmental complexity increases fear indicators in Nile tilapiaanimal welfarebarren environmentemotional responseenrichmentfeartilapiaAnimals are often kept in conditions with low environmental complexity and for long periods in barren artificial environments. This has been shown to lead to poor welfare in many species of animals. We assessed the emotional responses of Nile tilapia, Oreochromis niloticus L., maintained for different intervals in a barren or enriched environment. Four groups of fish were tested individually for emotionality by inserting a novel object in the glass aquarium to assess behavioural responses, such as indicators of fear and exploratory behaviours. Fish kept for 7 weeks in barren environments showed behavioural indicators of fear in response to the novel object test performed in each isolated fish. Enriched environment increased the time investigating a novel object. The reduced time spent performing behaviours that indicate fear during the novel object test in fish kept in an enriched environment shows that the responses were a consequence of lack of stimuli, not necessarily social isolation. More complex environments improve the affective states and welfare of tilapia.Department of Preventive Veterinary Medicine and Animal Health School of Veterinary Medicine and Animal Science USP - University of São PauloDepartment of Physiology Institute of Biosciences (IB) Caunesp UNESP - São Paulo State UniversitySt Catharine's College and Department of Veterinary Medicine University of CambridgeDepartment of Physiology Institute of Biosciences (IB) Caunesp UNESP - São Paulo State UniversityUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)University of CambridgeTatemoto, P.Valença-Silva, G. [UNESP]Queiroz, Mariana R.Broom, Donald M.2021-06-25T10:25:46Z2021-06-25T10:25:46Z2021-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article169-174http://dx.doi.org/10.1016/j.anbehav.2021.02.006Animal Behaviour, v. 174, p. 169-174.0003-3472http://hdl.handle.net/11449/20605510.1016/j.anbehav.2021.02.0062-s2.0-85102633559Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnimal Behaviourinfo:eu-repo/semantics/openAccess2021-10-22T20:43:00Zoai:repositorio.unesp.br:11449/206055Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:23:54.706356Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Living with low environmental complexity increases fear indicators in Nile tilapia |
title |
Living with low environmental complexity increases fear indicators in Nile tilapia |
spellingShingle |
Living with low environmental complexity increases fear indicators in Nile tilapia Tatemoto, P. animal welfare barren environment emotional response enrichment fear tilapia |
title_short |
Living with low environmental complexity increases fear indicators in Nile tilapia |
title_full |
Living with low environmental complexity increases fear indicators in Nile tilapia |
title_fullStr |
Living with low environmental complexity increases fear indicators in Nile tilapia |
title_full_unstemmed |
Living with low environmental complexity increases fear indicators in Nile tilapia |
title_sort |
Living with low environmental complexity increases fear indicators in Nile tilapia |
author |
Tatemoto, P. |
author_facet |
Tatemoto, P. Valença-Silva, G. [UNESP] Queiroz, Mariana R. Broom, Donald M. |
author_role |
author |
author2 |
Valença-Silva, G. [UNESP] Queiroz, Mariana R. Broom, Donald M. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) University of Cambridge |
dc.contributor.author.fl_str_mv |
Tatemoto, P. Valença-Silva, G. [UNESP] Queiroz, Mariana R. Broom, Donald M. |
dc.subject.por.fl_str_mv |
animal welfare barren environment emotional response enrichment fear tilapia |
topic |
animal welfare barren environment emotional response enrichment fear tilapia |
description |
Animals are often kept in conditions with low environmental complexity and for long periods in barren artificial environments. This has been shown to lead to poor welfare in many species of animals. We assessed the emotional responses of Nile tilapia, Oreochromis niloticus L., maintained for different intervals in a barren or enriched environment. Four groups of fish were tested individually for emotionality by inserting a novel object in the glass aquarium to assess behavioural responses, such as indicators of fear and exploratory behaviours. Fish kept for 7 weeks in barren environments showed behavioural indicators of fear in response to the novel object test performed in each isolated fish. Enriched environment increased the time investigating a novel object. The reduced time spent performing behaviours that indicate fear during the novel object test in fish kept in an enriched environment shows that the responses were a consequence of lack of stimuli, not necessarily social isolation. More complex environments improve the affective states and welfare of tilapia. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:25:46Z 2021-06-25T10:25:46Z 2021-04-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.anbehav.2021.02.006 Animal Behaviour, v. 174, p. 169-174. 0003-3472 http://hdl.handle.net/11449/206055 10.1016/j.anbehav.2021.02.006 2-s2.0-85102633559 |
url |
http://dx.doi.org/10.1016/j.anbehav.2021.02.006 http://hdl.handle.net/11449/206055 |
identifier_str_mv |
Animal Behaviour, v. 174, p. 169-174. 0003-3472 10.1016/j.anbehav.2021.02.006 2-s2.0-85102633559 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Animal Behaviour |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
169-174 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128642938568704 |