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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
17/11/2011 |
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Data da última atualização: |
17/11/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RODAKIEWICZ, S. M.; MUNHOZ, M. L.; MACIEL, D.; YAMAKAUA, F. H. S.; DUARTE, C. R. A.; PORTES, V. M.; DAMBRÓS, D.; URIO, M.; FORELL, F.; COSTA, U. M. |
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Afiliação: |
Epagri |
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Título: |
Seroprevalence of bovine leukemia virus BLV in dairy cattle in western region of Santa Catarina state, Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: NATIONAL MEETING OF VIROLOGY, 22. MERCOSUR MEETING OF VIROLOGY, 6., 2011, Atibaia, SP. Proceedings... Belo Horizonte: Brazilian Society for Virology, 2011. p. 292. |
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Idioma: |
Português |
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Conteúdo: |
The enzootic bovine leukemia virus (BLV) belongs to the Retroviridae family, genus Deltaretrovirus and is worldwide distributed. The BLV is included of OIE (World Organisation for Animal Health) listed diseases, therefore subjected to restrictions in the international trade. In addition this agent causes economic losses in production and productivity of infected animals, especially dairy cattle. The Santa Catarina state is the fifth milk producer in Brazil, producing over 2.4 million liters of milk in 2010, concentrated mainly in the western state. Several Brazilian states have reported the prevalence of this agent in their herds, however Santa Catarina state lacks this information. The aim of this work was to identify the prevalence of seropositive animals for bovine leukemia virus in dairy animals in the western region state. To this, blood samples from 321 animals of 16 properties in the region west of the state were randomly collected, and the serum was extracted to perform the agar gel immunodiffusion test (AGID). The test kit used for the diagnosis of enzootic bovine leukemia was developed by Parana Institute of Technology (TECPAR). This kit detect antibodies against the viral glycoprotein gp51 and the AGID test was performed according to manufacturer specifications. The prevalence observed was 29% (93/321) among the animals tested, and the 50% (8/16) in herds analyzed. On the farm with the highest prevalence, 17 of 19 animals were positive (89%) and the farm that had de lower prevalence only one of 15 animals was positive (6%). These data demonstrate that BLV is present in dairy cattle in Santa Catarina state, indicating that sanitary actions should be adopted to control and reduce the dissemination of this agent in the herd. MenosThe enzootic bovine leukemia virus (BLV) belongs to the Retroviridae family, genus Deltaretrovirus and is worldwide distributed. The BLV is included of OIE (World Organisation for Animal Health) listed diseases, therefore subjected to restrictions in the international trade. In addition this agent causes economic losses in production and productivity of infected animals, especially dairy cattle. The Santa Catarina state is the fifth milk producer in Brazil, producing over 2.4 million liters of milk in 2010, concentrated mainly in the western state. Several Brazilian states have reported the prevalence of this agent in their herds, however Santa Catarina state lacks this information. The aim of this work was to identify the prevalence of seropositive animals for bovine leukemia virus in dairy animals in the western region state. To this, blood samples from 321 animals of 16 properties in the region west of the state were randomly collected, and the serum was extracted to perform the agar gel immunodiffusion test (AGID). The test kit used for the diagnosis of enzootic bovine leukemia was developed by Parana Institute of Technology (TECPAR). This kit detect antibodies against the viral glycoprotein gp51 and the AGID test was performed according to manufacturer specifications. The prevalence observed was 29% (93/321) among the animals tested, and the 50% (8/16) in herds analyzed. On the farm with the highest prevalence, 17 of 19 animals were positive (89%) and the farm that had ... Mostrar Tudo |
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Palavras-Chave: |
Brazil; Dairy cattle; Enzootic Bovine Leukemia Virus; Santa Catarina. |
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Categoria do assunto: |
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LEADER 02386naa a2200169 a 4500
001 1082080
005 2011-11-17
008 2011 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aSeroprevalence of bovine leukemia virus BLV in dairy cattle in western region of Santa Catarina state, Brazil.
260 $c2011
520 $aThe enzootic bovine leukemia virus (BLV) belongs to the Retroviridae family, genus Deltaretrovirus and is worldwide distributed. The BLV is included of OIE (World Organisation for Animal Health) listed diseases, therefore subjected to restrictions in the international trade. In addition this agent causes economic losses in production and productivity of infected animals, especially dairy cattle. The Santa Catarina state is the fifth milk producer in Brazil, producing over 2.4 million liters of milk in 2010, concentrated mainly in the western state. Several Brazilian states have reported the prevalence of this agent in their herds, however Santa Catarina state lacks this information. The aim of this work was to identify the prevalence of seropositive animals for bovine leukemia virus in dairy animals in the western region state. To this, blood samples from 321 animals of 16 properties in the region west of the state were randomly collected, and the serum was extracted to perform the agar gel immunodiffusion test (AGID). The test kit used for the diagnosis of enzootic bovine leukemia was developed by Parana Institute of Technology (TECPAR). This kit detect antibodies against the viral glycoprotein gp51 and the AGID test was performed according to manufacturer specifications. The prevalence observed was 29% (93/321) among the animals tested, and the 50% (8/16) in herds analyzed. On the farm with the highest prevalence, 17 of 19 animals were positive (89%) and the farm that had de lower prevalence only one of 15 animals was positive (6%). These data demonstrate that BLV is present in dairy cattle in Santa Catarina state, indicating that sanitary actions should be adopted to control and reduce the dissemination of this agent in the herd.
653 $aBrazil
653 $aDairy cattle
653 $aEnzootic Bovine Leukemia Virus
653 $aSanta Catarina
773 $tIn: NATIONAL MEETING OF VIROLOGY, 22. MERCOSUR MEETING OF VIROLOGY, 6., 2011, Atibaia, SP. Proceedings... Belo Horizonte: Brazilian Society for Virology, 2011. p. 292.
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Registro original: |
Epagri-Sede (Epagri-Sede) |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
19/05/2011 |
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Data da última atualização: |
11/07/2011 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Circulação/Nível: |
-- - -- |
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Autoria: |
LORENZI, K. S.; MINUZZI, R. B.; MASSIGNAM, A. M. |
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Afiliação: |
Epagri |
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Título: |
Análise de sensibilidade da evapotranspiração de referência pelo método de Penman-Monteith (FAO 1998) em Santa Catarina. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE BIOMETEOROLOGIA, 5., 2011, Piracicaba, SP. Anais.... Piracicaba, SP: ESALQ/USP , 2011. |
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Idioma: |
Português |
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Conteúdo: |
A evapotranspiração consiste numa das maiores preocupações na medição dos parâmetros agrometeorológicos, tendo em vista que a perda d?água da superfície terrestre tem muita influência no desenvolvimento das culturas (Dantas, 1995). O trabalho teve como objetivo realizar a análise de sensibilidade da Evapotranspiração de referência (ETo) pelo método de Penman-Monteith (PM) com algumas variáveis meteorológicas de 22 estações localizadas em Santa Catarina. A regressão linear múltipla foi realizada correlacionando a ETo (PM) como variável dependente, com quatro variáveis independentes, sendo a temperatura, umidade relativa, insolação e velocidade do vento. Com a regressão simples foi possível verificar a correlação de cada variável meteorológica com a ETo (PM). A temperatura foi a variável meteorológica que mais influenciou na ETo (PM). |
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Palavras-Chave: |
Análise de sensibilidade; Evapotranspiração; Penman-Monteith. |
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Categoria do assunto: |
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LEADER 01444naa a2200157 a 4500
001 1076622
005 2011-07-11
008 2011 bl --- 0-- u #d
100 1 $aEpagri
245 $aAnálise de sensibilidade da evapotranspiração de referência pelo método de Penman-Monteith (FAO 1998) em Santa Catarina.
260 $c2011
520 $aA evapotranspiração consiste numa das maiores preocupações na medição dos parâmetros agrometeorológicos, tendo em vista que a perda d?água da superfície terrestre tem muita influência no desenvolvimento das culturas (Dantas, 1995). O trabalho teve como objetivo realizar a análise de sensibilidade da Evapotranspiração de referência (ETo) pelo método de Penman-Monteith (PM) com algumas variáveis meteorológicas de 22 estações localizadas em Santa Catarina. A regressão linear múltipla foi realizada correlacionando a ETo (PM) como variável dependente, com quatro variáveis independentes, sendo a temperatura, umidade relativa, insolação e velocidade do vento. Com a regressão simples foi possível verificar a correlação de cada variável meteorológica com a ETo (PM). A temperatura foi a variável meteorológica que mais influenciou na ETo (PM).
653 $aAnálise de sensibilidade
653 $aEvapotranspiração
653 $aPenman-Monteith
773 $tIn: CONGRESSO BRASILEIRO DE BIOMETEOROLOGIA, 5., 2011, Piracicaba, SP. Anais.... Piracicaba, SP: ESALQ/USP , 2011.
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