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Authordc.contributor.authorBorie Polanco, Consuelo 
Authordc.contributor.authorHauva Bustos, Carolina 
Authordc.contributor.authorQuiroga Sepúlveda, Juan Francisco 
Authordc.contributor.authorBravo, V. 
Authordc.contributor.authorSánchez Chong, María Luisa 
Authordc.contributor.authorMorales Miranda, María Angélica 
Authordc.contributor.authorRetamal Merino, Patricio 
Authordc.contributor.authorRetamales, J. 
Authordc.contributor.authorRobeson, J. 
Admission datedc.date.accessioned2018-12-20T14:52:38Z
Available datedc.date.available2018-12-20T14:52:38Z
Publication datedc.date.issued2011
Cita de ítemdc.identifier.citationArchivos de Medicina Veterinaria, Volumen 43, Issue 1, 2011, Pages 85-89
Identifierdc.identifier.issn07176201
Identifierdc.identifier.issn0301732X
Identifierdc.identifier.other10.4067/S0301-732X2011000100012
Identifierdc.identifier.urihttp://repositorio.uchile.cl/handle/2250/157157
Abstractdc.description.abstractSalmonella enterica serovar Enteritidis (SE) remains an important enteropathogen in the poultry industry and public health. Due to the limited effectiveness of control measures, lytic bacteriophages have shown a potential use as biocontrollers of SE in birds. The aim of this study was to determine the effectiveness of prophylactic therapy with phages to control intestinal and reproductive tract colonization of SE in laying hens. 22-week old Hy-Line Brown hens free of Salmonella, were treated with a mixture of three bacteriophages (1011 PFU/dose/phage) and challenged with 2.4 × 108 CFU of SE, 24 hours post phage treatment. On day 10 post challenge, hens were euthanatized, and individual samples of cecum, ovary and oviduct, were analyzed using qualitative and quantitative bacteriology. Eggs laid during the experience were collected and processed to detect SE. The incidence of Salmonella in ceca was similar between positive control and treated groups (96.67%) and cecal bacterial counts did not present significant differences between them (P > 0.05). In reproductive tissues, phagetherapy was able to slightly reduce the SE count in the ovary (P ≤ 0.05), but not in oviducts (P > 0.05). This lytic activity of phages observed in ovaric tissue, encourages further efforts to elucidate the real contribution of bacteriophages as SE biocontrollers in laying hens
Lenguagedc.language.isoen
Publisherdc.publisherUniversidad Austral de Chile
Sourcedc.sourceArchivos de Medicina Veterinaria
Keywordsdc.subjectBacteriophages
Keywordsdc.subjectLaying hens
Keywordsdc.subjectPoultry
Keywordsdc.subjectPrevention
Keywordsdc.subjectSalmonella
Títulodc.titleBacteriophage use in laying hens infected with Salmonella enterica serovar Enteritidis: Prevention of intestinal and reproductive colonization. Uso de bacteriófagos en gallinas de postura infectadas con Salmonella enterica serotipo enteritidis: prevención
Document typedc.typeArtículo de revista
Catalogueruchile.catalogadorapc
Indexationuchile.indexArtículo de publicación SCOPUS
uchile.cosechauchile.cosechaSI


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