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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
05/12/2016 |
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Data da última atualização: |
05/12/2016 |
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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.; LAGE, A. P.; BLAGITZ, M. G.; DELLA LIBERA, A. M. M. P.; 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, FMVZ/USP; ALICE M. M. P. DELLA LIBERA, FMVZ/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, Brasília, DF. V. 36, N. 9, p. 811-818, set. 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
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. MenosThe 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... Mostrar Tudo |
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Palavras-Chave: |
Especificidade; Infecção intramamária; Intramammary infection; Mastite; Saúde da glândula mamária; Sensibilidade; Sensitivity; Specificity; Udder health status. |
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Thesagro: |
Mamite; Vaca leiteira. |
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Thesaurus Nal: |
Dairy cows; Mastitis; Somatic cell count. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151230/1/Somatic-cell-count-and-mastitis.pdf
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Marc: |
LEADER 02936naa a2200421 a 4500
001 2057934
005 2016-12-05
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.
260 $c2016
520 $aThe 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 $aDairy cows
650 $aMastitis
650 $aSomatic cell count
650 $aMamite
650 $aVaca leiteira
653 $aEspecificidade
653 $aInfecção intramamária
653 $aIntramammary infection
653 $aMastite
653 $aSaúde da glândula mamária
653 $aSensibilidade
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.
700 1 $aLAGE, A. P.
700 1 $aBLAGITZ, M. G.
700 1 $aDELLA LIBERA, A. M. M. P.
700 1 $aHEINEMANN, M. B.
700 1 $aCERQUEIRA, M. M. O. P.
773 $tPesquisa Veterinária Brasileira, Brasília, DF. V. 36, N. 9, p. 811-818, set. 2016.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste; Embrapa Solos. |
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Data corrente: |
23/02/2017 |
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Data da última atualização: |
10/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
NOGUEIRA, A. R. de A.; SOUZA, G. B. de; BOSSU, C. M.; BIANCHI, S. R.; VERHALEN, T. R.; SILVA, P. T. da; PEIXOTO, A. M. D. de J.; SILVA, C. S. da. |
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Afiliação: |
ANA RITA DE ARAUJO NOGUEIRA, CPPSE; GILBERTO BATISTA DE SOUZA, CPPSE; Carla Maíra Bossu, UFSCar; SILMARA ROSSANA BIANCHI, CNPS; Tatiane Rosane Verhalen, UFSCar; Patricia Teixeira da Silva, UFSCar; Amanda Maria Dantas de Jesus Peixoto, Bolsista, Embrapa Pecuária Sudeste; Caroline Santos da Silva, UFSCar. |
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Título: |
Embrapa's experience in the production and development of agriculture reference materials. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Physics: Conference Series, v. 733, 12005, 2016. |
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DOI: |
https://doi.org/10.1088/1742-6596/733/1/012005 |
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Idioma: |
Inglês |
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Conteúdo: |
The main challenge of Embrapa is to develop a model of genuine Brazilian tropical agriculture and livestock. To get this task, the quality of laboratories results is mandatory, increasing the demand for reference materials. Projects were proposed to produce reference materials to support the national agriculture laboratories and consolidate a network able to perform reliable and reproducible analytical testing laboratory within the internationally standards required. Reference materials were produced and available to interested laboratories and collaborative tests were conducted to obtain consensus values. The results and statistical evaluations were performed with the use of software developed by Embrapa Pecuária Sudeste. |
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Palavras-Chave: |
Reference materials; Software. |
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Thesaurus NAL: |
agriculture. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01522naa a2200253 a 4500
001 2135988
005 2021-11-10
008 2016 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1088/1742-6596/733/1/012005$2DOI
100 1 $aNOGUEIRA, A. R. de A.
245 $aEmbrapa's experience in the production and development of agriculture reference materials.$h[electronic resource]
260 $c2016
520 $aThe main challenge of Embrapa is to develop a model of genuine Brazilian tropical agriculture and livestock. To get this task, the quality of laboratories results is mandatory, increasing the demand for reference materials. Projects were proposed to produce reference materials to support the national agriculture laboratories and consolidate a network able to perform reliable and reproducible analytical testing laboratory within the internationally standards required. Reference materials were produced and available to interested laboratories and collaborative tests were conducted to obtain consensus values. The results and statistical evaluations were performed with the use of software developed by Embrapa Pecuária Sudeste.
650 $aagriculture
653 $aReference materials
653 $aSoftware
700 1 $aSOUZA, G. B. de
700 1 $aBOSSU, C. M.
700 1 $aBIANCHI, S. R.
700 1 $aVERHALEN, T. R.
700 1 $aSILVA, P. T. da
700 1 $aPEIXOTO, A. M. D. de J.
700 1 $aSILVA, C. S. da
773 $tJournal of Physics: Conference Series$gv. 733, 12005, 2016.
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Embrapa Solos (CNPS) |
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