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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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| Registros recuperados : 8 | |
| 2. |  | BLAGITZ, M.; BOTOSSO, P. C.; BIANCHINI, E.; MEDRI, M. E. Crescimento radial do tronco e densidade da madeira de espécies arbóreas da Floresta Estacional Semidecidual do Sul do Brasil. In: CONGRESSO NACIONAL DE BOTÂNICA, 64.; ENCONTRO REGIONAL DE BOTÂNICOS MG, BA E ES, 23., 2013, Belo Horizonte. Anais... Belo Horizonte: SBB, 2013. Disponibilizado online.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 4. | | MOLINARI, P. C. C.; BLAGITZ, M. G.; DELLA LIBERA, A. M. M. P.; BATISTA, C. F.; SOUZA, F. N. Intracellular reactive oxygen species production and phagocytosis of Staphylococcus aureus by milk neutrophils as tool to diagnose mastitis and identify susceptible dairy cows. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 4, p. 659-664, abril 2018 Título em português: Produção intracelular de espécies reativas de oxigênio e fagocitose de Staphylococcus aureus por neutrófilos lácteos como ferramentas para o diagnóstico da mastite e identificação de vacas leiteiras susceptíveis à...| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | TAKANO, P. V.; BLAGITZ, M. G.; MIRA, C. S.; BATISTA, C. F.; DELLA LIBERA, A. M. M.; SOUZA, F. N. Estudo comparativo das diferentes técnicas empregadas na contagem diferencial de leucócitos no leite. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 4, p. 773-778, abril 2018 Título em inglês: Comparative study of distinct techniques to determine differential leukocyte counts in milk.
.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 6. | | BLAGITZ, M. G.; SOUZA, F. N.; BATISTA, C. F.; SANTOS, BRUNA P.; PARRA, A. C.; AZEVEDO, L. F. F.; DELLA LIBERA, A. M. M. P. Expression of CD14 and toll-like receptors 2 and 4 by milk neutrophils in bovine mammary glands infected with Corynebacterium bovis. Pesquisa Veterinária Brasileira, Rio de Janeiro, n. 35, n.1, p.1-5, jan. 2015.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 7. | | 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. Somatic cell count and mastitis pathogen detection in composite and single or duplicate quarter milk samples. Pesquisa Veterinária Brasileira, Brasília, DF. V. 36, N. 9, p. 811-818, set. 2016.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 8. | | 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. Somatic cell count and mastitis pathogen detection in composite and single or duplicate quarter milk samples. Pesquisa Veterinária Brasileira, v. 36, n. 9, p. 811-818, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 8 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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