Experimental infection of calves with Haemonchus placei or Haemonchus contortus: Assessment of clinical, hematological and biochemical parameters and histopathological characteristics of abomasums

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dc.contributor.authorFávero, Flávia Carolina [UNESP]
dc.contributor.authorBuzzulini, Carolina [UNESP]
dc.contributor.authorCruz, Breno Cayeiro [UNESP]
dc.contributor.authorFelippelli, Gustavo [UNESP]
dc.contributor.authorMaciel, Willian Giquelin [UNESP]
dc.contributor.authorSalatta, Bruna [UNESP]
dc.contributor.authorSiniscalchi, Débora [UNESP]
dc.contributor.authorLopes, Welber Daniel Zanetti [UNESP]
dc.contributor.authorTeixeira, Weslen Fabricio Pires [UNESP]
dc.contributor.authorSoares, Vando Edésio [UNESP]
dc.contributor.authorde Oliveira, Gilson Pereira [UNESP]
dc.contributor.authorda Costa, Alvimar José [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.contributor.institutionUniversidade Camilo Castelo Branco (Unicastelo)
dc.date.accessioned2018-12-11T17:07:07Z
dc.date.available2018-12-11T17:07:07Z
dc.date.issued2016-11-01
dc.description.abstractThe present study had the primary objective of evaluating clinical, hematological and biochemical parameters, as well as observing anatomical and histopathological characteristics of abomasums, from calves prime-infected with Haemonchus contortus or H. placei. Ten male Holstein newborns were subdivided in three groups (GI placebo; GII infected with H. contortus; GIII inoculated with H. placei). Eye mucosa staining was evaluated. Hematological and biochemical tests were performed on animals. The euthanasia of all ten experimental calves was performed on the 42nd day post-inoculation. Fragments were collected from each of all 10 abomasums for histopathological analysis. Discrete submandibular edema was diagnosed in animals from both infected groups (H. contortus or H. placei). However, there were no significant changes (P > 0.05) in the color of the ocular mucosa of calves from all three experimental groups across the entire experimental period. Hematological and biochemical changes diagnosed on animals could not be linked to infections by species of Haemonchus spp. Regarding histopathological exams, it was possible to diagnose hypertrophy, hyperplasia, binucleated cells, inflammatory infiltrate, multifocal hemorrhage and edema in abomasums from calves of both groups infected with H. placei and H. contortus. It can, thus, be concluded that not only are calves susceptible to infections by both Haemonchus species, but they can also present clinical changes and similar anatomic histopathological lesions independent of being infected by Haemonchus placei or Haemonchus contortus. These results reflect a negative effect on helminth control by mixed grazing between sheep and cattle, especially when using calves.en
dc.description.affiliationFaculdade de Ciências Agrárias e Veterinárias UNESP/CPPAR, Via de acesso Prof. Paulo Donatto Castellane, s/n
dc.description.affiliationInstituto de Patologia Tropical e Saúde Pública Universidade Federal de Goiás
dc.description.affiliationUniversidade Camilo Castelo Branco (Unicastelo), Av. Hilário da Silva Passos, 950
dc.description.affiliationUnespFaculdade de Ciências Agrárias e Veterinárias UNESP/CPPAR, Via de acesso Prof. Paulo Donatto Castellane, s/n
dc.format.extent125-134
dc.identifierhttp://dx.doi.org/10.1016/j.exppara.2016.09.017
dc.identifier.citationExperimental Parasitology, v. 170, p. 125-134.
dc.identifier.doi10.1016/j.exppara.2016.09.017
dc.identifier.issn1090-2449
dc.identifier.issn0014-4894
dc.identifier.scopus2-s2.0-84992088961
dc.identifier.urihttp://hdl.handle.net/11449/173657
dc.language.isoeng
dc.relation.ispartofExperimental Parasitology
dc.relation.ispartofsjr0,635
dc.relation.ispartofsjr0,635
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCalves
dc.subjectFAMACHA
dc.subjectHaemonchus control
dc.subjectMixed grazing
dc.titleExperimental infection of calves with Haemonchus placei or Haemonchus contortus: Assessment of clinical, hematological and biochemical parameters and histopathological characteristics of abomasumsen
dc.typeArtigo
unesp.author.lattes4587241487071929[12]

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