Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysis

Detalhes bibliográficos
Autor(a) principal: Meier, Katia Wanusa de Almeida
Data de Publicação: 2021
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.26/38083
Resumo: Deoxynivalenol (DON) and Zearalenone (ZEA) are the most frequent and toxicologically important Fusarium mycotoxins detected in cereal grains and feedstuffs, causing toxic effects that impair the performance of farm animals, with pigs being the most susceptible species. The objectives of this study were to evaluate the occurrence of DON and ZEA in feed cereal grains and compound feed destined to swine consumption, to perform a histopathological study using liver samples collected from gilts and sows fed with these compound feeds. Twelve ingredients (unprocessed maize, barley, wheat, bran, rapeseed, soybean) and twenty-six samples of swine compound feed were analyzed. The histopathological study was performed using samples from slaughtered pigs that had been fed the analyzed compound feed for at least two weeks. Results showed that 71.1% of the samples were positive for ZEA and 78.9% for DON. Histologically, diffuse degenerative changes compatible with hepatosis were observed.
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spelling Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysisDeoxynivalenolFeedHistopathologyMycotoxinSwineZearalenoneCerealsDesoxinivalenolAlimento destinado ao consumo animalHistopatologiaMicotoxinaSuínoZearalenonaCereaisDeoxynivalenol (DON) and Zearalenone (ZEA) are the most frequent and toxicologically important Fusarium mycotoxins detected in cereal grains and feedstuffs, causing toxic effects that impair the performance of farm animals, with pigs being the most susceptible species. The objectives of this study were to evaluate the occurrence of DON and ZEA in feed cereal grains and compound feed destined to swine consumption, to perform a histopathological study using liver samples collected from gilts and sows fed with these compound feeds. Twelve ingredients (unprocessed maize, barley, wheat, bran, rapeseed, soybean) and twenty-six samples of swine compound feed were analyzed. The histopathological study was performed using samples from slaughtered pigs that had been fed the analyzed compound feed for at least two weeks. Results showed that 71.1% of the samples were positive for ZEA and 78.9% for DON. Histologically, diffuse degenerative changes compatible with hepatosis were observed.Desoxinivalenol (DON) e Zearalenona (ZEA) são as micotoxinas de Fusarium mais frequentes e toxicologicamente importantes detetadas em cereais e alimentos para animais, causando efeitos tóxicos que prejudicam o desempenho de animais de produção, sendo os suínos a espécie mais suscetível. Este estudo teve como objetivo avaliar a ocorrência de DON e ZEA em grãos de cereais e alimentos compostos destinados ao consumo de suínos, bem como realizar um estudo histopatológico com a utilização de amostras de fígado recolhidas de marrãs e porcas alimentadas com estes alimentos compostos. Foram analisados doze ingredientes (milho não processado, cevada, trigo, farelo, colza, soja) e vinte e seis amostras de alimento composto para suínos. O estudo histopatológico foi realizado utilizando amostras de suínos abatidos que haviam sido alimentados com os alimentos compostos analisados durante pelo menos duas semanas. Verificou-se que 71,1% das amostras foram positivas para a ZEA e 78,9% para a DON. Histologicamente, foram observadas alterações degenerativas difusas compatíveis com hepatose.Duarte, Sofia Alexandra Giestas CancelaRepositório ComumMeier, Katia Wanusa de Almeida2021-11-29T11:49:53Z2021-10-08T00:00:00Z2021-10-08T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.26/38083202801691enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-05T13:56:57Zoai:comum.rcaap.pt:10400.26/38083Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:11:27.037753Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysis
title Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysis
spellingShingle Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysis
Meier, Katia Wanusa de Almeida
Deoxynivalenol
Feed
Histopathology
Mycotoxin
Swine
Zearalenone
Cereals
Desoxinivalenol
Alimento destinado ao consumo animal
Histopatologia
Micotoxina
Suíno
Zearalenona
Cereais
title_short Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysis
title_full Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysis
title_fullStr Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysis
title_full_unstemmed Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysis
title_sort Deoxynivalenol and Zearalenone natural occurrence in swine feedstruffs and histopathological analysis
author Meier, Katia Wanusa de Almeida
author_facet Meier, Katia Wanusa de Almeida
author_role author
dc.contributor.none.fl_str_mv Duarte, Sofia Alexandra Giestas Cancela
Repositório Comum
dc.contributor.author.fl_str_mv Meier, Katia Wanusa de Almeida
dc.subject.por.fl_str_mv Deoxynivalenol
Feed
Histopathology
Mycotoxin
Swine
Zearalenone
Cereals
Desoxinivalenol
Alimento destinado ao consumo animal
Histopatologia
Micotoxina
Suíno
Zearalenona
Cereais
topic Deoxynivalenol
Feed
Histopathology
Mycotoxin
Swine
Zearalenone
Cereals
Desoxinivalenol
Alimento destinado ao consumo animal
Histopatologia
Micotoxina
Suíno
Zearalenona
Cereais
description Deoxynivalenol (DON) and Zearalenone (ZEA) are the most frequent and toxicologically important Fusarium mycotoxins detected in cereal grains and feedstuffs, causing toxic effects that impair the performance of farm animals, with pigs being the most susceptible species. The objectives of this study were to evaluate the occurrence of DON and ZEA in feed cereal grains and compound feed destined to swine consumption, to perform a histopathological study using liver samples collected from gilts and sows fed with these compound feeds. Twelve ingredients (unprocessed maize, barley, wheat, bran, rapeseed, soybean) and twenty-six samples of swine compound feed were analyzed. The histopathological study was performed using samples from slaughtered pigs that had been fed the analyzed compound feed for at least two weeks. Results showed that 71.1% of the samples were positive for ZEA and 78.9% for DON. Histologically, diffuse degenerative changes compatible with hepatosis were observed.
publishDate 2021
dc.date.none.fl_str_mv 2021-11-29T11:49:53Z
2021-10-08T00:00:00Z
2021-10-08T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.26/38083
202801691
url http://hdl.handle.net/10400.26/38083
identifier_str_mv 202801691
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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