Cutaneous Basophilia in the Resistance of Goats to Amblyomma cajennense Nymphs after Repeated Infestations

Página do item simplificado
dc.contributor.authorMonteiro, Gaby E. R.
dc.contributor.authorBechara, Gervasio Henrique [UNESP]
dc.contributor.institutionUniv Eduardo Mondlane
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:16:04Z
dc.date.available2014-05-20T13:16:04Z
dc.date.issued2008-01-01
dc.description.abstractThe acquisition of resistance in goats against Amblyomma cajennense after repeated infestations and the role of inflammatory cells in this mechanism were investigated. Ten naive goats aged 6 months were distributed into two groups: test (n = 5), infested thrice at 30-day intervals; and control (n = 5), infested once. Nymphs (n = 115 per animal per infestation) were released inside alimentary chambers glued to the animal's dorsum and the following biological parameters were evaluated: yielding rate, nymphal engorgement weight, engorgement period, ecdise rate, and ecdise period. Skin fragments of tick bite sites were collected at 24, 48, 72, and 120 h post attachment for histopathology and inflammatory cells counts. The engorgement weight decreased significantly (P < 0.05) from the first infestation onward; nymphs weighed 41.7% and 37.1% less after the second and third infestations, respectively, as compared to those collected after the first infestation (12.55 mg +/- 3.21). Furthermore, the ecdise period increased significantly (P < 0.05) in the third infestation (18 days +/- 2.83) in comparison with the first infestation (15 days +/- 0.82) and the ecdise rate was significantly lower after the second infestation (71.91% +/- 17.38) in comparison with the first infestation (96.89% +/- 3.38). There were no significant differences with regard to both the engorgement period and yielding rate. A cutaneous basophilia was evidenced between 48 and 72 h (P < 0.05) after both the second and third infestations. We conclude that goats develop resistance against nymphs of A. cajennense and that basophils may play an important role in such a mechanism.en
dc.description.affiliationUniv Eduardo Mondlane, Fac Vet, Maputo, Mozambique
dc.description.affiliationUniv Estadual Paulista, Dept Patol Vet, Fac Ciencias Agr & Vet, UNESP, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Patol Vet, Fac Ciencias Agr & Vet, UNESP, BR-14884900 Jaboticabal, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipEuropean Commission
dc.description.sponsorshipIdEuropean Commission: 510561
dc.format.extent221-225
dc.identifierhttp://dx.doi.org/10.1196/annals.1428.026
dc.identifier.citationAnimal Biodiversity and Emerging Diseases: Prediction and Prevention. Oxford: Blackwell Publishing, v. 1149, p. 221-225, 2008.
dc.identifier.doi10.1196/annals.1428.026
dc.identifier.issn0077-8923
dc.identifier.lattes2382374201685423
dc.identifier.urihttp://hdl.handle.net/11449/3038
dc.identifier.wosWOS:000262400000056
dc.language.isoeng
dc.publisherBlackwell Publishing
dc.relation.ispartofAnimal Biodiversity and Emerging Diseases: Prediction and Prevention
dc.relation.ispartofjcr4.277
dc.relation.ispartofsjr2,108
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAmblyomma cajennenseen
dc.subjectbiological parametersen
dc.subjectcutaneous basophiliaen
dc.subjectGoatsen
dc.subjectNymphsen
dc.titleCutaneous Basophilia in the Resistance of Goats to Amblyomma cajennense Nymphs after Repeated Infestationsen
dc.typeArtigo
dcterms.licensehttp://www.nyas.org/Publications/Annals/AuthorGuidelines.aspx
dcterms.rightsHolderBlackwell Publishing
unesp.author.lattes2382374201685423
unesp.author.orcid0000-0003-4619-3744[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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 - Patologia Veterinária - FCAV