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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com rosangela.lacerda@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
17/02/2016 |
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Data da última atualização: |
16/05/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARDOZO, L. L.; THALER NETO, A.; SOUZA, G. N. de; PICININ, L. C. A.; FELIPUS, N. C.; RECHE, N. L. M.; SCHMIDT, F. A.; WERNCKE, D.; SIMON, E. E. |
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Afiliação: |
L. L. CARDOZO, UNIVERSIDADE DO ESTADO DE SANTA CATARINA; A. THALER NETO, UNIVERSIDADE DO ESTADO DE SANTA CATARINA; GUILHERME NUNES DE SOUZA, CNPGL; L. C. A. PICININ, UNIVERSIDADE DO ESTADO DE SANTA CATARINA; N. C. FELIPUS, UNIVERSIDADE DO ESTADO DE SANTA CATARINA; N. L. M. RECHE, UNIVERSIDADE DO ESTADO DE SANTA CATARINA; F. A. SCHMIDT, UNIVERSIDADE DO ESTADO DE SANTA CATARINA; D. WERNCKE, UFRGS; E. E. SIMON, UNIVERSIDADE DO ESTADO DE SANTA CATARINA. |
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Título: |
Risk factors for the occurrence of new and chronic cases of subclinical mastitis in dairy herds in southern Brazil. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Journal of Dairy Science, v. 98, n. 11, p. 7675-7685, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this research was to evaluate the risk factors for new and chronic subclinical intramammary infections (IMI) using the monthly somatic cells count of dairy cows. The study took place at 30 dairy herds with approximately 1,700 cows in lactation. Data characterizing the dairy farms and their milking management were obtained from a survey questionnaire. The somatic cells count values from 2 consecutive months were used to classify cows as either healthy or with new or chronic infections. A chi-squared test was used in the analysis of subclinical IMI to evaluate associations between each independent variable, followed by logistic regression to estimate the risk of a new infection in healthy cows and of chronic infection in cows with new infections. Factors increasing the odds ratio of a cow developing a new case of subclinical mastitis were (1) cows with more than 3 lactations, (2) cows with a mean hyperkeratosis score above 3, (3) cows with the udder below the hock, (4) cows with very dirty udders, and (5) milking of infected animals before healthy cows. Factors increasing the risk of a subclinical chronic infection compared with new cases of subclinical mastitis were (1) a lack of regular maintenance of milking machinery, (2) cows over 100 d in lactation, and (3) cows with the udder on or below the hock. The risk factors identified in this study can be used in IMI control programs to reduce the frequency of new and chronic cases of subclinical mastitis. |
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Palavras-Chave: |
Dairy herd; Intramammary infection; Somatic cell. |
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Thesaurus Nal: |
Odds ratio. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02279naa a2200265 a 4500
001 2037427
005 2024-05-16
008 2015 bl uuuu u00u1 u #d
100 1 $aCARDOZO, L. L.
245 $aRisk factors for the occurrence of new and chronic cases of subclinical mastitis in dairy herds in southern Brazil.$h[electronic resource]
260 $c2015
520 $aThe aim of this research was to evaluate the risk factors for new and chronic subclinical intramammary infections (IMI) using the monthly somatic cells count of dairy cows. The study took place at 30 dairy herds with approximately 1,700 cows in lactation. Data characterizing the dairy farms and their milking management were obtained from a survey questionnaire. The somatic cells count values from 2 consecutive months were used to classify cows as either healthy or with new or chronic infections. A chi-squared test was used in the analysis of subclinical IMI to evaluate associations between each independent variable, followed by logistic regression to estimate the risk of a new infection in healthy cows and of chronic infection in cows with new infections. Factors increasing the odds ratio of a cow developing a new case of subclinical mastitis were (1) cows with more than 3 lactations, (2) cows with a mean hyperkeratosis score above 3, (3) cows with the udder below the hock, (4) cows with very dirty udders, and (5) milking of infected animals before healthy cows. Factors increasing the risk of a subclinical chronic infection compared with new cases of subclinical mastitis were (1) a lack of regular maintenance of milking machinery, (2) cows over 100 d in lactation, and (3) cows with the udder on or below the hock. The risk factors identified in this study can be used in IMI control programs to reduce the frequency of new and chronic cases of subclinical mastitis.
650 $aOdds ratio
653 $aDairy herd
653 $aIntramammary infection
653 $aSomatic cell
700 1 $aTHALER NETO, A.
700 1 $aSOUZA, G. N. de
700 1 $aPICININ, L. C. A.
700 1 $aFELIPUS, N. C.
700 1 $aRECHE, N. L. M.
700 1 $aSCHMIDT, F. A.
700 1 $aWERNCKE, D.
700 1 $aSIMON, E. E.
773 $tJournal of Dairy Science$gv. 98, n. 11, p. 7675-7685, 2015.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 36 | |
| 1. |  | MORAIS, J. W.; FRINKLIN, E.; LUIZAO, F. J. Invertebrados em "litter-bags". In: SHIFT PROJECT ENV 52 (Manaus-AB). Soil fauna and litter decomposition in primary and secondary forests and a mixed culture system in Amazonia. Manaus: SMNK/Embrapa Amazonia Ocidental, 1999. p. 230-255. Final Report 1996-1999.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 3. | | SANTOS, E. M. R.; FRANKLIN, E.; LUIZÃO, F. J. Litter manipulation and associated invertebrate fauna in secondary forest, central Amazonia, Brazil. In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.| Biblioteca(s): Embrapa Florestas. |
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| 6. | | FRANKLIN, E.; MORAIS, J. W.; LUIZAO, F. J. Mesofauna. In: SHIFT PROJECT ENV 52 (Manaus-AB). Soil fauna and litter decomposition in primary and secondary forests and a mixed culture system in Amazonia. Manaus: SMNK/Embrapa Amazonia Ocidental, 1999. p. 128-151. Final Report 1996-1999.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 8. | | FERREIRA, S. J. F.; CRESTANA, S.; ROSS, S.; MELLO, W.; LUIZAO, F. J. A influencia do manejo florestal nas caracteristicas fisicas do solo em uma area de floresta de terra firme na amazonia central. In: CONGRESSO BRASILEIRO DE SISTEMAS ARTICULADOS, 23., out. 1995, Maringa, PR. Programacao e resumos... Maringa: Universidade Estadual de Maringa, 1995. p.P3-21.| Biblioteca(s): Embrapa Instrumentação. |
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| 9. | | FERREIRA, S. J. F.; CRESTANA, S.; ROSS, S. M.; MELLO, W.; LUIZAO, F. J. A influencia do manejo florestal nas caracteristicas fisicas do solo em uma area de floresta de terra firme na amazonia central. In: CONGRESSO BRASILEIRO DE SISTEMAS PARTICULADOS, 23., out. 1995, Maringa, PR. Anais... Maringa: Universidade Estadual de Maringa, 1995. v.2 p.1043-1050.| Biblioteca(s): Embrapa Instrumentação. |
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| 10. | | FERREIRA, S. J. F.; CRESTANA, S.; DUARTE JUNIOR, D.; LUIZAO, F. J.; ROSS, S. M. A interceptação da água da chuva em área de floresta de terra firme que sofreu manejo na Amazônia Central. In: SIMPÓSIO DE CIÊNCIAS DA ENGENHARIA AMBIENTAL, 2.; SIMPÓSIO DO CURSO DE CIÊNCIAS DA ENGENHARIA AMBIENTAL, 4., 1997, São Carlos, SP. Anais... São Carlos: USP-EESC-CRHEA, 1997. p. 69-71.| Biblioteca(s): Embrapa Instrumentação. |
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| 17. | | LINS-TEIXEIRA, A.; TAPIA-CORAL, S. C.; LUIZÃO, F. J.; MORAIS, J. W.; WANDELLI, E. V. Macro-invertebrados do solo em capoeiras trituradas usadas como alternativa ao uso do fogo no Assentamento Tarumã-Mirim, Amazonas. In: CONGRESSO DE ECOLOGIA DO BRASIL, 8., 2007, Caxambú. Anais... [S.l.]: Sociedade de Ecologia do Brasil, 2007. p. 1-2.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| Registros recuperados : 36 | |
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