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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
05/12/2016 |
Data da última atualização: |
05/12/2016 |
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. |
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. |
Título: |
Somatic cell count and mastitis pathogen detection in composite and single or duplicate quarter milk samples. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Brasília, DF. V. 36, N. 9, p. 811-818, set. 2016. |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Especificidade; Infecção intramamária; Intramammary infection; Mastite; Saúde da glândula mamária; Sensibilidade; Sensitivity; Specificity; Udder health status. |
Thesagro: |
Mamite; Vaca leiteira. |
Thesaurus Nal: |
Dairy cows; Mastitis; Somatic cell count. |
Categoria do assunto: |
-- |
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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Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
25/11/2006 |
Data da última atualização: |
19/01/2018 |
Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
Autoria: |
CAMARÃO, A. P.; MENDONÇA, C. L. G.; RODRIGUES FILHO, J. A.; DUTRA, S. |
Afiliação: |
ARI PINHEIRO CAMARÃO, CPATU; JOSE ADERITO RODRIGUES FILHO, CPATU; SATURNINO DUTRA, CPATU. |
Título: |
Composição botânica da dieta de bovinos em pastagem de Brachiaria humidicola estabelecida em área originalmente de capoeira. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
Belém, PA: Embrapa Amazônia Oriental, 2004. |
Páginas: |
28 p. |
Descrição Física: |
il. |
Série: |
(Embrapa Amazônia Oriental. Boletim de pesquisa e desenvolvimento, 37). |
Idioma: |
Português |
Conteúdo: |
Tem por objetivo avaliar a composição botânica da dieta consumida por bovinos em pastagem de quicuio-da-amazônia (Brachiaria humidicola), estabelecida em área originalmente de capoeira através da análise microhistológica de fezes em três datas de amostragens. |
Palavras-Chave: |
Bovinos - nutrição; Brasil; Disponibilidade de forragem; Igarapé-Açu; Pará. |
Thesagro: |
Bovino; Brachiaria Humidicola; Capim Quicuio; Composição Botânica; Dieta; Leguminosa; Nutrição Animal; Vegetação Secundária. |
Thesaurus NAL: |
Amazonia. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49493/1/Boletim-PD-37-AMAZ-ORIENTAL.pdf
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Marc: |
LEADER 01296nam a2200337 a 4500 001 1407765 005 2018-01-19 008 2004 bl uuuu u0uu1 u #d 100 1 $aCAMARÃO, A. P. 245 $aComposição botânica da dieta de bovinos em pastagem de Brachiaria humidicola estabelecida em área originalmente de capoeira. 260 $aBelém, PA: Embrapa Amazônia Oriental$c2004 300 $a28 p.$cil. 490 $a(Embrapa Amazônia Oriental. Boletim de pesquisa e desenvolvimento, 37). 520 $aTem por objetivo avaliar a composição botânica da dieta consumida por bovinos em pastagem de quicuio-da-amazônia (Brachiaria humidicola), estabelecida em área originalmente de capoeira através da análise microhistológica de fezes em três datas de amostragens. 650 $aAmazonia 650 $aBovino 650 $aBrachiaria Humidicola 650 $aCapim Quicuio 650 $aComposição Botânica 650 $aDieta 650 $aLeguminosa 650 $aNutrição Animal 650 $aVegetação Secundária 653 $aBovinos - nutrição 653 $aBrasil 653 $aDisponibilidade de forragem 653 $aIgarapé-Açu 653 $aPará 700 1 $aMENDONÇA, C. L. G. 700 1 $aRODRIGUES FILHO, J. A. 700 1 $aDUTRA, S.
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