Passive Immunity of Progeny from Broiler Breeders Vaccinated with Oil-Emulsion Bacterin Against Salmonella Enteritidis

Página do item simplificado
dc.contributor.authorInoue, A. Y.
dc.contributor.authorBerchieri, A. [UNESP]
dc.contributor.authorBernardino, A.
dc.contributor.authorPaiva, J. B. [UNESP]
dc.contributor.authorSterzo, E. V. [UNESP]
dc.contributor.institutionFt Dodge Anim Hlth
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:31:41Z
dc.date.available2014-05-20T15:31:41Z
dc.date.issued2008-12-01
dc.description.abstractYoung poultry are very susceptible to Salmonella Enteritidis (SE) infections because of the absence of complete intestinal flora colonization and an immature immune system. This study evaluated the role of passive immunity on the resistance of young birds against early infections caused by SE. The progeny of broiler breeders vaccinated with an oil-emulsion bacterin was compared to the progeny of unvaccinated birds. Efficacy was determined by challenging birds at 1 and 14 days of age with SE Nal Spc strain, phage type 4. After challenge at 1 day of age, the progeny of vaccinated birds presented a significantly lower number (log(10)) of SE Nal Spc reisolation (P < 0.05) in liver (2.21), spleen (2.31), and cecal contents (2.85) compared with control groups (2.76, 3.02, and 6.03, respectively). The examination of the internal organs, 3 days after infection, revealed that 28% of the birds (7/25) from vaccinated breeders were positive, whereas 100% (25/25) of the chicks derived from unvaccinated birds were positive. Birds challenged at 14 days of age presented a lower number of positive samples compared with those challenged at 1 day of age, and the progeny of vaccinated birds presented statistically lower numbers (log(10)) of colony-forming units/ml of SE Nal Spc only in the cecal contents compared with nonvaccinated breeder progeny (2.11 vs. 2.94). Age seems to influence the susceptibility of birds to SE infections: in control groups, the number of positive birds at 14 days of age (9/25) was lower when compared with the group infected at 1 day of age (25/25). The number of positive fecal samples of the progeny of vaccinated birds was significantly lower (36) than those of the control group (108) after challenge at 1 day of age. Unchallenged progeny of vaccinated birds presented passive antibodies detectable by enzyme-linked immunosorbent assay (ELISA) up to 21 days of age. on the other hand, antibodies of the control group were detected by ELISA 14 days after challenge. These results show a significant contribution of breeder vaccination by increasing the resistance of the progeny against early SE infections. However, the bacteria were not completely eliminated, suggesting that additional procedures are needed to effectively control SE infections.en
dc.description.affiliationFt Dodge Anim Hlth, BR-13064798 São Paulo, Brazil
dc.description.affiliationSão Paulo State Univ, Dept Vet Pathol, Avian Pathol Lab, São Paulo, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Dept Vet Pathol, Avian Pathol Lab, São Paulo, Brazil
dc.format.extent567-571
dc.identifierhttp://dx.doi.org/10.1637/8096-082707-Reg.1
dc.identifier.citationAvian Diseases. Athens: Amer Assoc Avian Pathologists, v. 52, n. 4, p. 567-571, 2008.
dc.identifier.doi10.1637/8096-082707-Reg.1
dc.identifier.issn0005-2086
dc.identifier.urihttp://hdl.handle.net/11449/40752
dc.identifier.wosWOS:000264525700002
dc.language.isoeng
dc.publisherAmer Assoc Avian Pathologists
dc.relation.ispartofAvian Diseases
dc.relation.ispartofjcr1.328
dc.relation.ispartofsjr0,656
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectpassive immunityen
dc.subjectSalmonella Enteritidisen
dc.subjectvaccinationen
dc.subjectbroiler breederen
dc.titlePassive Immunity of Progeny from Broiler Breeders Vaccinated with Oil-Emulsion Bacterin Against Salmonella Enteritidisen
dc.typeArtigo
dcterms.licensehttp://www.bioone.org/page/terms_of_use
dcterms.rightsHolderAmer Assoc Avian Pathologists
unesp.author.lattes3508096260678286[2]
unesp.author.orcid0000-0002-4844-0895[4]
unesp.author.orcid0000-0003-2522-6500[2]

Arquivos

Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos