Individuality matters for substrate-size preference in the Nile tilapia juveniles
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/10888705.2017.1423229 http://hdl.handle.net/11449/179526 |
Resumo: | Preference tests have usually been used to identify nonhuman animal preferences for welfare purposes (environmental enrichment), but they are mostly at the group level—that is, group preferences for resources or environmental conditions. However, a more robust method was developed to analyze animal preference, and this method detected clear individual variation in preferences of Nile tilapia fish (Oreochromis niloticus) selecting different background colors. Here, a clear individual variability of preference was found for another type of enrichment—the sizes of substrate. Despite this variability, a consistent response was detected at the group level: Small gravel was less frequently preferred than avoided, and the more decided fish (those who preferred only one substrate size) never preferred gravel over sand-size substrate. That is, Nile tilapia avoided gravel and preferred smaller substrate, and this finding was possibly associated with their mouth gap. Considering that small gravel is a substrate often used for fish rearing, these findings highlight fish keepers’ incorrect perception of fish needs, based mostly on arbitrary criteria instead of actual fish preferences and without considering individual needs. |
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Repositório Institucional da UNESP |
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Individuality matters for substrate-size preference in the Nile tilapia juvenilesgravelindividual variabilityPreferred optionssandPreference tests have usually been used to identify nonhuman animal preferences for welfare purposes (environmental enrichment), but they are mostly at the group level—that is, group preferences for resources or environmental conditions. However, a more robust method was developed to analyze animal preference, and this method detected clear individual variation in preferences of Nile tilapia fish (Oreochromis niloticus) selecting different background colors. Here, a clear individual variability of preference was found for another type of enrichment—the sizes of substrate. Despite this variability, a consistent response was detected at the group level: Small gravel was less frequently preferred than avoided, and the more decided fish (those who preferred only one substrate size) never preferred gravel over sand-size substrate. That is, Nile tilapia avoided gravel and preferred smaller substrate, and this finding was possibly associated with their mouth gap. Considering that small gravel is a substrate often used for fish rearing, these findings highlight fish keepers’ incorrect perception of fish needs, based mostly on arbitrary criteria instead of actual fish preferences and without considering individual needs.Department of Physiology Institute of Biosciences UNESP - São Paulo State UniversityDepartment of Physiology Institute of Biosciences UNESP - São Paulo State UniversityUniversidade Estadual Paulista (Unesp)Maia, Caroline Marques [UNESP]Volpato, Gilson Luiz [UNESP]2018-12-11T17:35:31Z2018-12-11T17:35:31Z2018-10-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article316-324application/pdfhttp://dx.doi.org/10.1080/10888705.2017.1423229Journal of Applied Animal Welfare Science, v. 21, n. 4, p. 316-324, 2018.1532-76041088-8705http://hdl.handle.net/11449/17952610.1080/10888705.2017.14232292-s2.0-850409713792-s2.0-85040971379.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Applied Animal Welfare Science0,588info:eu-repo/semantics/openAccess2023-11-20T06:14:46Zoai:repositorio.unesp.br:11449/179526Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-20T06:14:46Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Individuality matters for substrate-size preference in the Nile tilapia juveniles |
title |
Individuality matters for substrate-size preference in the Nile tilapia juveniles |
spellingShingle |
Individuality matters for substrate-size preference in the Nile tilapia juveniles Maia, Caroline Marques [UNESP] gravel individual variability Preferred options sand |
title_short |
Individuality matters for substrate-size preference in the Nile tilapia juveniles |
title_full |
Individuality matters for substrate-size preference in the Nile tilapia juveniles |
title_fullStr |
Individuality matters for substrate-size preference in the Nile tilapia juveniles |
title_full_unstemmed |
Individuality matters for substrate-size preference in the Nile tilapia juveniles |
title_sort |
Individuality matters for substrate-size preference in the Nile tilapia juveniles |
author |
Maia, Caroline Marques [UNESP] |
author_facet |
Maia, Caroline Marques [UNESP] Volpato, Gilson Luiz [UNESP] |
author_role |
author |
author2 |
Volpato, Gilson Luiz [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Maia, Caroline Marques [UNESP] Volpato, Gilson Luiz [UNESP] |
dc.subject.por.fl_str_mv |
gravel individual variability Preferred options sand |
topic |
gravel individual variability Preferred options sand |
description |
Preference tests have usually been used to identify nonhuman animal preferences for welfare purposes (environmental enrichment), but they are mostly at the group level—that is, group preferences for resources or environmental conditions. However, a more robust method was developed to analyze animal preference, and this method detected clear individual variation in preferences of Nile tilapia fish (Oreochromis niloticus) selecting different background colors. Here, a clear individual variability of preference was found for another type of enrichment—the sizes of substrate. Despite this variability, a consistent response was detected at the group level: Small gravel was less frequently preferred than avoided, and the more decided fish (those who preferred only one substrate size) never preferred gravel over sand-size substrate. That is, Nile tilapia avoided gravel and preferred smaller substrate, and this finding was possibly associated with their mouth gap. Considering that small gravel is a substrate often used for fish rearing, these findings highlight fish keepers’ incorrect perception of fish needs, based mostly on arbitrary criteria instead of actual fish preferences and without considering individual needs. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T17:35:31Z 2018-12-11T17:35:31Z 2018-10-02 |
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/10.1080/10888705.2017.1423229 Journal of Applied Animal Welfare Science, v. 21, n. 4, p. 316-324, 2018. 1532-7604 1088-8705 http://hdl.handle.net/11449/179526 10.1080/10888705.2017.1423229 2-s2.0-85040971379 2-s2.0-85040971379.pdf |
url |
http://dx.doi.org/10.1080/10888705.2017.1423229 http://hdl.handle.net/11449/179526 |
identifier_str_mv |
Journal of Applied Animal Welfare Science, v. 21, n. 4, p. 316-324, 2018. 1532-7604 1088-8705 10.1080/10888705.2017.1423229 2-s2.0-85040971379 2-s2.0-85040971379.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Applied Animal Welfare Science 0,588 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
316-324 application/pdf |
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_ |
1803649768350547968 |