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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
17/12/2018 |
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Data da última atualização: |
22/01/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MIRABALLESA, C.; SANCHEZ, J.; BARROS, A. T. M. de; HITATEGUYB, S.; MARENOB, P.; SAPORITIA, T.; RIET-CORREA, F. |
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Afiliação: |
Cecilia Miraballesa, National Institute of Agriculture Research - INIA; Javier Sanchez, University of Prince Edwards Island; ANTONIO THADEU MEDEIROS DE BARROS, CNPGC; Sebastian Hitateguyb, Veterinary Faculty, Republic University - UDELAR; Pablo Morenob, Veterinary Faculty, Republic University - UDELAR; Tatiana Saporitia, National Institute of Agriculture Research - INIA; Franklin Riet-Correa, National Institute of Agriculture Research - INIA. |
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Título: |
Influence of selective treatment of bulls on the infestation of Haematobia irritans on untreated cows. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 260, p. 58-62, 2018 |
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Idioma: |
Inglês |
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Conteúdo: |
The distribution of Hematobia irritans is not homogeneous in cattle populations. Generally, between 15% and 30% of bovines carry more than 50% of the flies, and higher infestations occur in bulls. In this study, the effect of treating the bulls with ear tags containing 40% diazinon on the infestation of flies on the herd during the breeding season was evaluated. Four groups of cattle were made, each containing one bull and 35 Braford cows. Groups 1 and 2 were on pastures in highlands. Groups 3 and 4 were on pastures in lowlands. At the beginning of the trial, each bull from Groups 1 and 3 was treated with an ear tag. Bulls from Groups 2 and 4 remained untreated. Weekly, for 10 weeks, horn flies were counted from each bull and 15 cows from each group. A repeated measures linear mixed model was used with cows as random effects. The number of horn flies in the treated groups was lower than that in the untreated group, suggesting that selective treatment of bulls could be an effective strategy to control horn flies on the herd. The number of flies was higher in the lowland than that in the highland groups, suggesting an effect of the environment on horn fly infestations. In addition, we estimated the cow level predictions from the model to estimate the cow effect on fly counts, and we compared those values with the observed weekly quartiles for each group. Fly-susceptible cows were defined as those for which the infestation of flies appeared in the upper quartile more than 50% of the weeks and in the lower quartile less than 20% of the weeks. In contrast, a fly-resistant cow was defined as one for which the fly counts appeared in the lower quartile more than 50% of the weeks and in the upper quartile less than 20% of the weeks. In all, 8.3% of the cows were susceptible and 15% were resistant. These results may be used to selectively treat bulls or to treat the bulls and the most susceptible cows during the breeding season. MenosThe distribution of Hematobia irritans is not homogeneous in cattle populations. Generally, between 15% and 30% of bovines carry more than 50% of the flies, and higher infestations occur in bulls. In this study, the effect of treating the bulls with ear tags containing 40% diazinon on the infestation of flies on the herd during the breeding season was evaluated. Four groups of cattle were made, each containing one bull and 35 Braford cows. Groups 1 and 2 were on pastures in highlands. Groups 3 and 4 were on pastures in lowlands. At the beginning of the trial, each bull from Groups 1 and 3 was treated with an ear tag. Bulls from Groups 2 and 4 remained untreated. Weekly, for 10 weeks, horn flies were counted from each bull and 15 cows from each group. A repeated measures linear mixed model was used with cows as random effects. The number of horn flies in the treated groups was lower than that in the untreated group, suggesting that selective treatment of bulls could be an effective strategy to control horn flies on the herd. The number of flies was higher in the lowland than that in the highland groups, suggesting an effect of the environment on horn fly infestations. In addition, we estimated the cow level predictions from the model to estimate the cow effect on fly counts, and we compared those values with the observed weekly quartiles for each group. Fly-susceptible cows were defined as those for which the infestation of flies appeared in the upper quartile more than 50% o... Mostrar Tudo |
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Palavras-Chave: |
BLUPs Control; Resistant cows; Susceptible cows. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02629naa a2200229 a 4500
001 2101720
005 2019-01-22
008 2018 bl uuuu u00u1 u #d
100 1 $aMIRABALLESA, C.
245 $aInfluence of selective treatment of bulls on the infestation of Haematobia irritans on untreated cows.$h[electronic resource]
260 $c2018
520 $aThe distribution of Hematobia irritans is not homogeneous in cattle populations. Generally, between 15% and 30% of bovines carry more than 50% of the flies, and higher infestations occur in bulls. In this study, the effect of treating the bulls with ear tags containing 40% diazinon on the infestation of flies on the herd during the breeding season was evaluated. Four groups of cattle were made, each containing one bull and 35 Braford cows. Groups 1 and 2 were on pastures in highlands. Groups 3 and 4 were on pastures in lowlands. At the beginning of the trial, each bull from Groups 1 and 3 was treated with an ear tag. Bulls from Groups 2 and 4 remained untreated. Weekly, for 10 weeks, horn flies were counted from each bull and 15 cows from each group. A repeated measures linear mixed model was used with cows as random effects. The number of horn flies in the treated groups was lower than that in the untreated group, suggesting that selective treatment of bulls could be an effective strategy to control horn flies on the herd. The number of flies was higher in the lowland than that in the highland groups, suggesting an effect of the environment on horn fly infestations. In addition, we estimated the cow level predictions from the model to estimate the cow effect on fly counts, and we compared those values with the observed weekly quartiles for each group. Fly-susceptible cows were defined as those for which the infestation of flies appeared in the upper quartile more than 50% of the weeks and in the lower quartile less than 20% of the weeks. In contrast, a fly-resistant cow was defined as one for which the fly counts appeared in the lower quartile more than 50% of the weeks and in the upper quartile less than 20% of the weeks. In all, 8.3% of the cows were susceptible and 15% were resistant. These results may be used to selectively treat bulls or to treat the bulls and the most susceptible cows during the breeding season.
653 $aBLUPs Control
653 $aResistant cows
653 $aSusceptible cows
700 1 $aSANCHEZ, J.
700 1 $aBARROS, A. T. M. de
700 1 $aHITATEGUYB, S.
700 1 $aMARENOB, P.
700 1 $aSAPORITIA, T.
700 1 $aRIET-CORREA, F.
773 $tVeterinary Parasitology$gv. 260, p. 58-62, 2018
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Embrapa Gado de Corte (CNPGC) |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
30/07/2015 |
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Data da última atualização: |
01/02/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ABAKERLI, R. B.; FAY, E. F.; LUIZ, A. J. B.; RODRIGUES, N. R.; TOLEDO, H. H. B. de; GALVÃO, T. D. L.; MEDINA, V. M.; MARTINS, D. dos S.; YAMANISH, O. K.; SOUZA, D. R. C. de; ROSA, M. A.; RIBEIRO, E. G. R.; MOLENA, A. C.; BONIFÁCIO, A. |
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Afiliação: |
ROSANGELA BLOTTA ABAKERLI, Embrapa Meio Ambiente; ELISABETH FRANCISCONI FAY, CNPMA; ALFREDO JOSE BARRETO LUIZ, CNPMA; NÁDIA REGINA RODRIGUES, CPQBA-Unicamp; Heloísa Helena Barreto de Toledo, Instituto Adolfo Lutz, São Paulo; Tarcilo David Lobo Galvão, Empresa Baiana de Desenvolvimento Agrícola S/A - EBDA; VALDIQUE MARTINS MEDINA, CNPMF; David dos Santos Martins, lnstituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural - lncaper, Vitória- ES; Osvaldo Kiyoshi Yamanishi, FMAV/Universidade de Brasília - UnB, Brasília- DF; DEBORA RENATA CASSOLI DE SOUZA, CNPMA; MARIA APARECIDA ROSA, CNPMA; Evani Glaza Rodrigues Ribeiro, CBQBA-Unicamp; Andrea Curia Molena, Instituto Adolfo Lutz, São Paulo; Arlindo Bonifácio, CFA/Ministério da Agricultura, Pecuária e Abastecimento - MAPA. |
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Título: |
Resíduos de EBDCs e culturas com geração fitogênica de CS2. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
In: SIMPÓSIO DO PAPAYA BRASILEIRO, 2., 2005, Vitória/ES. Papaya Brasil: mercado e inovações tecnológicas para o mamão. Vitória/ES: Incaper, 2005. p. 624-627. |
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Idioma: |
Português |
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Conteúdo: |
A análise de resíduos etilenobis(ditiocarbamatos) (EBDCs) é realizada de maneira indireta, pela dosagem de CS2. Desse modo, plantas que geram fitogenicamente CS2, como as Caricaceas, podem fornecer resultados falso positivos. Todos os métodos de análise de resíduos de EBDCs são uma variação do método de Keppel (1969; 1971), que dosa o CS2 colorimetricamente. O CS2 também pode ser analisado por cromatografia gasosa, utilizando-se a técnica de análise por headspace, ou pela modificação desse método com a dissolução do CS2 em uma camada de solvente orgânico (iso-octano). O objetivo deste estudo foi analisar em amostras testemunha de mamão o nível de CS2 endógeno por três métodos distintos de análise de resíduos de EBDCs: iso-octano, headspace e espectrofotométrico. As concentrações de CS2 foram comparadas com o limite máximo de resíduos adotado pela União Européia (0,05 mg kg-1). |
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Thesagro: |
Fungicida; Mamão; Resíduo. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1021030/1/2005PC-Abakerly-Residuos-14217.pdf
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Marc: |
LEADER 01873nam a2200301 a 4500
001 2021030
005 2023-02-01
008 2005 bl uuuu u00u1 u #d
100 1 $aABAKERLI, R. B.
245 $aResíduos de EBDCs e culturas com geração fitogênica de CS2.$h[electronic resource]
260 $aIn: SIMPÓSIO DO PAPAYA BRASILEIRO, 2., 2005, Vitória/ES. Papaya Brasil: mercado e inovações tecnológicas para o mamão. Vitória/ES: Incaper, 2005. p. 624-627.$c2005
520 $aA análise de resíduos etilenobis(ditiocarbamatos) (EBDCs) é realizada de maneira indireta, pela dosagem de CS2. Desse modo, plantas que geram fitogenicamente CS2, como as Caricaceas, podem fornecer resultados falso positivos. Todos os métodos de análise de resíduos de EBDCs são uma variação do método de Keppel (1969; 1971), que dosa o CS2 colorimetricamente. O CS2 também pode ser analisado por cromatografia gasosa, utilizando-se a técnica de análise por headspace, ou pela modificação desse método com a dissolução do CS2 em uma camada de solvente orgânico (iso-octano). O objetivo deste estudo foi analisar em amostras testemunha de mamão o nível de CS2 endógeno por três métodos distintos de análise de resíduos de EBDCs: iso-octano, headspace e espectrofotométrico. As concentrações de CS2 foram comparadas com o limite máximo de resíduos adotado pela União Européia (0,05 mg kg-1).
650 $aFungicida
650 $aMamão
650 $aResíduo
700 1 $aFAY, E. F.
700 1 $aLUIZ, A. J. B.
700 1 $aRODRIGUES, N. R.
700 1 $aTOLEDO, H. H. B. de
700 1 $aGALVÃO, T. D. L.
700 1 $aMEDINA, V. M.
700 1 $aMARTINS, D. dos S.
700 1 $aYAMANISH, O. K.
700 1 $aSOUZA, D. R. C. de
700 1 $aROSA, M. A.
700 1 $aRIBEIRO, E. G. R.
700 1 $aMOLENA, A. C.
700 1 $aBONIFÁCIO, A.
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