Diagnosis of subclinical mastitis in Santa Inês and Morada Nova sheep in southeastern Brazil

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dc.contributor.authorZafalon, Luiz Francisco
dc.contributor.authorSantana, Raul Costa Mascarenhas
dc.contributor.authorPilon, Lucas Eduardo [UNESP]
dc.contributor.authorJúnior, Guilherme Aparecido Fim [UNESP]
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:41:30Z
dc.date.available2018-12-11T16:41:30Z
dc.date.issued2016-06-01
dc.description.abstractThe objective of this study was to evaluate different screening limits for the California mastitis test (CMT) and the somatic cell count (SCC) in previous diagnoses of subclinical mastitis in Santa Inês and Morada Nova ewes, which were reared under the same management conditions. Additionally, cutoff points were defined for SCC in accordance with the sensitivity and specificity of the test. A total of 907 mammary halves were subjected to CMT and SCC. The disease was confirmed by means of microbiological identification. Coagulase-negative staphylococci (CNS) were the microorganisms with highest occurrence. The CMT score of 1+ provided adequate sensitivity and specificity at all periods of lactation investigated. This score showed good agreement with SCC, >400,000 cells mL−1. Higher cell counts favored higher diagnostic specificity. They can be used when producers have financial difficulties relating to treatment or culling of sheep with subclinical mastitis. However, producers should be warned about the risk of false-negative results in the flock.en
dc.description.affiliationBrazilian Agricultural Research Corporation (EMBRAPA), Embrapa Southeast Livestock, Rod. Washington Luís, Km 234, Caixa Postal 339
dc.description.affiliationPostgraduate Program in Veterinary Medicine School of Agricultural and Veterinarian Sciences UNESP - Univ Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane, s/n
dc.description.affiliationUnespPostgraduate Program in Veterinary Medicine School of Agricultural and Veterinarian Sciences UNESP - Univ Estadual Paulista, Via de Acesso Prof. Paulo Donato Castellane, s/n
dc.format.extent967-972
dc.identifierhttp://dx.doi.org/10.1007/s11250-016-1046-1
dc.identifier.citationTropical Animal Health and Production, v. 48, n. 5, p. 967-972, 2016.
dc.identifier.doi10.1007/s11250-016-1046-1
dc.identifier.file2-s2.0-84961215614.pdf
dc.identifier.issn1573-7438
dc.identifier.issn0049-4747
dc.identifier.scopus2-s2.0-84961215614
dc.identifier.urihttp://hdl.handle.net/11449/168492
dc.language.isoeng
dc.relation.ispartofTropical Animal Health and Production
dc.relation.ispartofsjr0,511
dc.relation.ispartofsjr0,511
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectDiagnostic tests
dc.subjectMilk
dc.subjectSheep
dc.subjectSubclinical mastitis
dc.titleDiagnosis of subclinical mastitis in Santa Inês and Morada Nova sheep in southeastern Brazilen
dc.typeArtigo
unesp.author.orcid0000-0002-4645-3588[1]

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