Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids

Detalhes bibliográficos
Autor(a) principal: Oliveira, G. H. de
Data de Publicação: 2000
Outros Autores: Berchieri, A., Barrow, P. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/194555
Resumo: This study was carried out to assess the ability of competitive exclusion and a mixture of organic acids to prevent Salmonella infection by contact between newly hatched chicks. A bird infected with Salmonella was placed in a box containing non-infected birds, previously treated with a broth culture of faeces of adult birds (CE) and/or a mixture of organic acids. The number of Salmonella organisms in the caeca of the contact birds was estimated at 4 and 8 days post-challenge. The birds were infected with Salmonella Typhimurium, Salmonella Enteritidis (both repeated 5 times), Salmonella Agona and Salmonella Infantis (3 repetitions). The same approach was used to test the mixture of organic acids alone. In this case the birds received feed containing 0.8% of a mixture of formic acid (70%) and propionic acid (30%). Also, a third trial was carried out with birds inoculated with the broth culture of faeces and fed with feed containing the mixture of organic acids. Appropriate controls were included. Whereas the birds from the control groups and the groups treated with the mixture of organic acids were heavily infected with Salmonella, those pre-treated with CE or CE plus the mixture of organic acids had no viable cells per grain of caecal contents.
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spelling Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acidsSalmonellacompetitive exclusionorganic acidsby-contact infectionpoultryThis study was carried out to assess the ability of competitive exclusion and a mixture of organic acids to prevent Salmonella infection by contact between newly hatched chicks. A bird infected with Salmonella was placed in a box containing non-infected birds, previously treated with a broth culture of faeces of adult birds (CE) and/or a mixture of organic acids. The number of Salmonella organisms in the caeca of the contact birds was estimated at 4 and 8 days post-challenge. The birds were infected with Salmonella Typhimurium, Salmonella Enteritidis (both repeated 5 times), Salmonella Agona and Salmonella Infantis (3 repetitions). The same approach was used to test the mixture of organic acids alone. In this case the birds received feed containing 0.8% of a mixture of formic acid (70%) and propionic acid (30%). Also, a third trial was carried out with birds inoculated with the broth culture of faeces and fed with feed containing the mixture of organic acids. Appropriate controls were included. Whereas the birds from the control groups and the groups treated with the mixture of organic acids were heavily infected with Salmonella, those pre-treated with CE or CE plus the mixture of organic acids had no viable cells per grain of caecal contents.UNESP, Fac Ciencias Agrarias & Vet, BR-14870000 Jaboticabal, SP, BrazilInst Anim Hlth, Compton Lab, Compton, Berks, EnglandUNESP, Fac Ciencias Agrarias & Vet, BR-14870000 Jaboticabal, SP, BrazilSoc Brasileira MicrobiologiaUniversidade Estadual Paulista (Unesp)Inst Anim HlthOliveira, G. H. deBerchieri, A.Barrow, P. A.2020-12-10T16:29:54Z2020-12-10T16:29:54Z2000-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article116-120Brazilian Journal Of Microbiology. Sao Paulo: Soc Brasileira Microbiologia, v. 31, n. 2, p. 116-120, 2000.1517-8382http://hdl.handle.net/11449/194555WOS:000165676000010Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal Of Microbiologyinfo:eu-repo/semantics/openAccess2021-10-22T17:27:25Zoai:repositorio.unesp.br:11449/194555Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:43:20.800372Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids
title Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids
spellingShingle Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids
Oliveira, G. H. de
Salmonella
competitive exclusion
organic acids
by-contact infection
poultry
title_short Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids
title_full Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids
title_fullStr Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids
title_full_unstemmed Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids
title_sort Prevention of Salmonella infection by contact using intestinal flora of adult birds and/or a mixture of organic acids
author Oliveira, G. H. de
author_facet Oliveira, G. H. de
Berchieri, A.
Barrow, P. A.
author_role author
author2 Berchieri, A.
Barrow, P. A.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Inst Anim Hlth
dc.contributor.author.fl_str_mv Oliveira, G. H. de
Berchieri, A.
Barrow, P. A.
dc.subject.por.fl_str_mv Salmonella
competitive exclusion
organic acids
by-contact infection
poultry
topic Salmonella
competitive exclusion
organic acids
by-contact infection
poultry
description This study was carried out to assess the ability of competitive exclusion and a mixture of organic acids to prevent Salmonella infection by contact between newly hatched chicks. A bird infected with Salmonella was placed in a box containing non-infected birds, previously treated with a broth culture of faeces of adult birds (CE) and/or a mixture of organic acids. The number of Salmonella organisms in the caeca of the contact birds was estimated at 4 and 8 days post-challenge. The birds were infected with Salmonella Typhimurium, Salmonella Enteritidis (both repeated 5 times), Salmonella Agona and Salmonella Infantis (3 repetitions). The same approach was used to test the mixture of organic acids alone. In this case the birds received feed containing 0.8% of a mixture of formic acid (70%) and propionic acid (30%). Also, a third trial was carried out with birds inoculated with the broth culture of faeces and fed with feed containing the mixture of organic acids. Appropriate controls were included. Whereas the birds from the control groups and the groups treated with the mixture of organic acids were heavily infected with Salmonella, those pre-treated with CE or CE plus the mixture of organic acids had no viable cells per grain of caecal contents.
publishDate 2000
dc.date.none.fl_str_mv 2000-04-01
2020-12-10T16:29:54Z
2020-12-10T16:29:54Z
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 Brazilian Journal Of Microbiology. Sao Paulo: Soc Brasileira Microbiologia, v. 31, n. 2, p. 116-120, 2000.
1517-8382
http://hdl.handle.net/11449/194555
WOS:000165676000010
identifier_str_mv Brazilian Journal Of Microbiology. Sao Paulo: Soc Brasileira Microbiologia, v. 31, n. 2, p. 116-120, 2000.
1517-8382
WOS:000165676000010
url http://hdl.handle.net/11449/194555
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal Of Microbiology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 116-120
dc.publisher.none.fl_str_mv Soc Brasileira Microbiologia
publisher.none.fl_str_mv Soc Brasileira Microbiologia
dc.source.none.fl_str_mv Web of Science
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
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