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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
13/02/2017 |
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Data da última atualização: |
30/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, F. N.; CUNHA, A. F.; ROSA, D. L. S. O.; BRITO, M. A. V. P. e; GUIMARAES, A. S.; MENDONCA, L. C.; SOUZA, G. N. de; LAGE, A. P.; BLAGITZ, M. G.; LIBERA, A. M. M. P. D.; HEINEMANN, M. B.; CERQUEIRA, M. M. O. P. |
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Afiliação: |
Fernando N. Souza, UFMG; Adriano F. Cunha, UFMG; Dalila L. S. O. Rosa, UFMG; MARIA APARECIDA V PAIVA E BRITO, CNPGL; ALESSANDRO DE SA GUIMARAES, CNPGL; LETICIA CALDAS MENDONCA, CNPGL; GUILHERME NUNES DE SOUZA, CNPGL; Andrey P. Lage, UFMG; Maiara G. Blagitz, USP; Alice M. M. P. Della Libera, USP; Marcos B. Heinemann, FMVZ/USP; Mônica M.O.P. Cerqueira, UFMG. |
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Título: |
Somatic cell count and mastitis pathogen detection in composite and single or duplicate quarter milk samples. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, v. 36, n. 9, p. 811-818, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract The most acceptable criteria for diagnosing bovine intramammary infections include results of bacteriological culture and measures of inflammation. Therefore, information on the diagnostic characteristics of the procedures used to identify infected quarters is required. Thus, this study was designed to evaluate a set of criteria to classify the infectious status of an udder at the quarter (single and duplicate milk samples) and cow (composite milk sample) levels, and to compare the infectious status with somatic cell counts (SCCs) of the samples. Here, the SCC thresholds determined by receiver operating characteristic curve analysis had a higher Youden index using mammary quarter duplicate milk samples as the gold standard for testing compared with single quarter and composite milk samples, especially for samples for which at least one of the duplicates was microbiologically positive, regardless of the mastitis pathogen isolated. The kappa coefficient for bacteriological results of the single quarter milk samples (single S1 and S2) was 0.85+0.019, indicating that single quarter milk sampling can be useful in mastitis control programs. Therefore, the use of composite milk samples to detect mastitis pathogens may be limited to the detection of major pathogens, given their predictive values. Thus, our findings suggest that the milk SCCs and microbiological examinations, although regarded as the most reliable indicators of ongoing mastitis, should be used in an integrated manner in mastitis control programs. Furthermore, the accuracy of single, duplicate and composite microbiological analyses to diagnosis mastitis should be considered for its implications in mastitis control strategies. MenosAbstract The most acceptable criteria for diagnosing bovine intramammary infections include results of bacteriological culture and measures of inflammation. Therefore, information on the diagnostic characteristics of the procedures used to identify infected quarters is required. Thus, this study was designed to evaluate a set of criteria to classify the infectious status of an udder at the quarter (single and duplicate milk samples) and cow (composite milk sample) levels, and to compare the infectious status with somatic cell counts (SCCs) of the samples. Here, the SCC thresholds determined by receiver operating characteristic curve analysis had a higher Youden index using mammary quarter duplicate milk samples as the gold standard for testing compared with single quarter and composite milk samples, especially for samples for which at least one of the duplicates was microbiologically positive, regardless of the mastitis pathogen isolated. The kappa coefficient for bacteriological results of the single quarter milk samples (single S1 and S2) was 0.85+0.019, indicating that single quarter milk sampling can be useful in mastitis control programs. Therefore, the use of composite milk samples to detect mastitis pathogens may be limited to the detection of major pathogens, given their predictive values. Thus, our findings suggest that the milk SCCs and microbiological examinations, although regarded as the most reliable indicators of ongoing mastitis, should be used in an integrat... Mostrar Tudo |
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Palavras-Chave: |
Dairy cow; Intramammary infection; Sensitivity; Specificity; Udder health status. |
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Thesaurus Nal: |
mastitis; somatic cell count. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/155465/1/Cnpgl-2016-PesqVetBras-Somatic.pdf
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Marc: |
LEADER 02723naa a2200337 a 4500
001 2063805
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aSOUZA, F. N.
245 $aSomatic cell count and mastitis pathogen detection in composite and single or duplicate quarter milk samples.$h[electronic resource]
260 $c2016
520 $aAbstract The most acceptable criteria for diagnosing bovine intramammary infections include results of bacteriological culture and measures of inflammation. Therefore, information on the diagnostic characteristics of the procedures used to identify infected quarters is required. Thus, this study was designed to evaluate a set of criteria to classify the infectious status of an udder at the quarter (single and duplicate milk samples) and cow (composite milk sample) levels, and to compare the infectious status with somatic cell counts (SCCs) of the samples. Here, the SCC thresholds determined by receiver operating characteristic curve analysis had a higher Youden index using mammary quarter duplicate milk samples as the gold standard for testing compared with single quarter and composite milk samples, especially for samples for which at least one of the duplicates was microbiologically positive, regardless of the mastitis pathogen isolated. The kappa coefficient for bacteriological results of the single quarter milk samples (single S1 and S2) was 0.85+0.019, indicating that single quarter milk sampling can be useful in mastitis control programs. Therefore, the use of composite milk samples to detect mastitis pathogens may be limited to the detection of major pathogens, given their predictive values. Thus, our findings suggest that the milk SCCs and microbiological examinations, although regarded as the most reliable indicators of ongoing mastitis, should be used in an integrated manner in mastitis control programs. Furthermore, the accuracy of single, duplicate and composite microbiological analyses to diagnosis mastitis should be considered for its implications in mastitis control strategies.
650 $amastitis
650 $asomatic cell count
653 $aDairy cow
653 $aIntramammary infection
653 $aSensitivity
653 $aSpecificity
653 $aUdder health status
700 1 $aCUNHA, A. F.
700 1 $aROSA, D. L. S. O.
700 1 $aBRITO, M. A. V. P. e
700 1 $aGUIMARAES, A. S.
700 1 $aMENDONCA, L. C.
700 1 $aSOUZA, G. N. de
700 1 $aLAGE, A. P.
700 1 $aBLAGITZ, M. G.
700 1 $aLIBERA, A. M. M. P. D.
700 1 $aHEINEMANN, M. B.
700 1 $aCERQUEIRA, M. M. O. P.
773 $tPesquisa Veterinária Brasileira$gv. 36, n. 9, p. 811-818, 2016.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
25/11/2010 |
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Data da última atualização: |
29/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
COTA, L. V.; COSTA, R. V.; SILVA, D. D.; PARREIRA, D. F.; LANA, U. G. de P.; CASELA, C. R. |
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Afiliação: |
LUCIANO VIANA COTA, CNPMS; RODRIGO VERAS DA COSTA, CNPMS; UFV; UBIRACI GOMES DE PAULA LANA, CNPMS. |
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Título: |
First report of pathogenicity of Pantoea ananatis in sorghum (Sorghum bicolor) in Brazil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Australasian Plant Disease Notes, v. 5, p. 120-122, 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
Bacterial isolates from sorghum plants showing leaf spot symptoms were identified through molecular and phenotypic traits, showing that the isolates belong to Pantoea ananatis. Sorghum plants inoculated with those isolates showed a pathogenic reaction. The causal agent was reisolated and Koch's postulates were fulfilled. This is the first report of P. ananatis causing leaf spots on sorghurn plants in Brazil. |
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Thesagro: |
Bactéria; Sorgo. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 01004naa a2200205 a 4500
001 1868011
005 2018-05-29
008 2010 bl uuuu u00u1 u #d
100 1 $aCOTA, L. V.
245 $aFirst report of pathogenicity of Pantoea ananatis in sorghum (Sorghum bicolor) in Brazil.$h[electronic resource]
260 $c2010
520 $aBacterial isolates from sorghum plants showing leaf spot symptoms were identified through molecular and phenotypic traits, showing that the isolates belong to Pantoea ananatis. Sorghum plants inoculated with those isolates showed a pathogenic reaction. The causal agent was reisolated and Koch's postulates were fulfilled. This is the first report of P. ananatis causing leaf spots on sorghurn plants in Brazil.
650 $aBactéria
650 $aSorgo
700 1 $aCOSTA, R. V.
700 1 $aSILVA, D. D.
700 1 $aPARREIRA, D. F.
700 1 $aLANA, U. G. de P.
700 1 $aCASELA, C. R.
773 $tAustralasian Plant Disease Notes$gv. 5, p. 120-122, 2010.
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Embrapa Milho e Sorgo (CNPMS) |
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