Welfare in nile tilapia production: Dorsal fin erection as a visual indicator for insensibility

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorGoiás Federal University-
Autor(es): dc.creatorCamargo-Dos-santos, Bruno-
Autor(es): dc.creatorCarlos, Clarissa Lerois-
Autor(es): dc.creatorFavero-Neto, João-
Autor(es): dc.creatorAlves, Nina Pacheco Capelini-
Autor(es): dc.creatorGonçalves, Bruno Bastos-
Autor(es): dc.creatorGiaquinto, Percília Cardoso-
Data de aceite: dc.date.accessioned2025-08-21T22:10:14Z-
Data de disponibilização: dc.date.available2025-08-21T22:10:14Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2021-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/ani11103007-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/229725-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/229725-
Descrição: dc.descriptionIn aquaculture, to ensure animal welfare in pre-slaughter and slaughter stages, it is fundamental that fish are insensible. A method for evaluating fish insensibility is based on visual sensibility indicators (VSI) assessment (i.e., self-initiated behavior, responses to stimuli and reflexes). However, many stimuli used to assess fish responses are painful. Therefore, this study verifies whether the presence/absence of a dorsal fin erection (DFE) response can be used as a painless VSI in Nile tilapia (Oreochromis niloticus). Three stunning protocols were applied to fish: benzocaine anesthesia (40 mg/L and 80 mg/L), ice water immersion (0–1, 2–3 and 5–6 °C) and CO2 stunning. After these stunning methods were applied in fish, the time of loss and return of DFE was observed, along with the vestibulo-ocular reflex (VOR). All fish stunned using benzocaine and ice water immersion lose both VSIs, while 95% of fish stunned using CO2 lose these VSIs. In all treatments, DFEs return quicker than VOR. Therefore, DFE can be used as a VSI in Nile tilapia, which is simple for producers to assess and does not require a painful stimulus. However, the DFE alone does not totally ensure fish insensibility and must be used together with other well-established VSIs at fish farms.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionStructural and Functional Biology Department Institute of Biosciences of Botucatu São Paulo State University-
Descrição: dc.descriptionAquaculture Center of São Paulo State University (UNESP)-
Descrição: dc.descriptionLaboratory of Environmental Biotechnology and Ecotoxicology Institute of Biosciences of UFG Goiás Federal University-
Descrição: dc.descriptionStructural and Functional Biology Department Institute of Biosciences of Botucatu São Paulo State University-
Descrição: dc.descriptionAquaculture Center of São Paulo State University (UNESP)-
Descrição: dc.descriptionCNPq: 158786/2013-0-
Descrição: dc.descriptionCNPq: 2019/19952-8-
Idioma: dc.languageen-
Relação: dc.relationAnimals-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAnimal welfare-
Palavras-chave: dc.subjectAquaculture-
Palavras-chave: dc.subjectFish stunning-
Palavras-chave: dc.subjectPre-slaughter-
Palavras-chave: dc.subjectSensibility state-
Título: dc.titleWelfare in nile tilapia production: Dorsal fin erection as a visual indicator for insensibility-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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