A comparison between IgG antibodies against Eimeria acervulina, E-maxima, and E-tenella and oocyst shedding in broiler-breeders vaccinated with live anticoccidial vaccines

dc.creatorGuzman, VB
dc.creatorSilva, DAO
dc.creatorKawazoe, U
dc.creatorMineo, JR
dc.date2003
dc.dateOCT 1
dc.date2014-11-19T03:47:09Z
dc.date2015-11-26T17:56:58Z
dc.date2014-11-19T03:47:09Z
dc.date2015-11-26T17:56:58Z
dc.date.accessioned2018-03-29T00:40:33Z
dc.date.available2018-03-29T00:40:33Z
dc.identifierVaccine. Elsevier Sci Ltd, v. 21, n. 27-30, n. 4225, n. 4233, 2003.
dc.identifier0264-410X
dc.identifierWOS:000186830800018
dc.identifier10.1016/S0264-410X(03)00462-6
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/52985
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/52985
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/52985
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1291371
dc.descriptionThe aim of this study was to compare the IgG response against Eimeria acervulina, E. maxima, and E. tenella and oocyst shedding in broiler-breeders vaccinated with live (virulent or attenuated) anticoccidial vaccines. Serum and faeces samples were collected from chickens before (4 days of age) and after (25 days of age) vaccination with virulent (group A) or attenuated (group B) vaccines and unvaccinated control birds (group Q. Criteria for evaluation included the number of oocysts shed on the litter (McMaster technique), the levels of specific serum IgG (ELISA) and the frequencies of antigenic fractions recognised by IgG antibodies (immunoblotting). The results demonstrated that the virulent vaccine (A) presented an ideal association (low oocyst number and high IgG positive rate) for E. acervulina and E. tenella while the immunised flock with the attenuated vaccine (B) demonstrated this ideal association only for E. maxima. Both vaccinated flocks demonstrated a better association for three Eimeria spp. studied when compared to the control group, which presented a divergent association (high oocyst number and low IgG positive rate), particularly for E. acervulina. Immumoblotting assays revealed different antigenic fractions that may be considered as inummodominant antigens. The present study suggests that E. acervulina is critically present in the region studied and the use of live anticoccidial vaccines (virulent or attenuated) showed to be effective to control the clinical coccidiosis in vaccinated flocks. (C) 2003 Elsevier Ltd. All rights reserved.
dc.description21
dc.description27-30
dc.description4225
dc.description4233
dc.languageen
dc.publisherElsevier Sci Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationVaccine
dc.relationVaccine
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectE. acervulina
dc.subjectE. maxima
dc.subjectE. tenella
dc.subjectlive anticoccidial vaccines
dc.subjectIgG antibodies
dc.subjectoocyst shedding
dc.subjectAvian Coccidiosis
dc.subjectProtective Immunity
dc.subjectChickens
dc.subjectParasites
dc.subjectTransmission
dc.subjectResponses
dc.subjectInfection
dc.subjectAntigens
dc.subjectExposure
dc.titleA comparison between IgG antibodies against Eimeria acervulina, E-maxima, and E-tenella and oocyst shedding in broiler-breeders vaccinated with live anticoccidial vaccines
dc.typeArtículos de revistas


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