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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
30/08/2016 |
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Data da última atualização: |
03/10/2016 |
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Autoria: |
REIS, P. J.; TUNKS, D. A. |
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Título: |
The influence of nutrition on the effectiveness of mimosine for defleecing sheep. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Australian Journal of Agricultural Research, v. 29, n. 5, p. 1057-1064, 1978. |
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DOI: |
10.1071/AR9781057 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The effectiveness of mimosine as a chemical defleecing agent was assessed in adult sheep that were subjected to a variety of nutritional treatments prior to administration of mimosine, and in lambs receiving relatively high feed intakes. Mimosine was given as a continuous intravenous infusion over a period of 2 days. Sheep receiving 600 g of a roughage-based diet per day were consistently defleeced following an infusion of mimosine at the rate of 80 mg/kg/day (designated the standard infusion). The prior feeding of a reduced intake of this diet (300 g/day) did not alter the amount of mimosine required to defleece sheep. Likewise, the prior abomasal infusion of an imbalanced mixture of amino acids, which depressed the wool growth rate, did not allow defleecing with a reduced amount of mimosine. A 4-day fast, commenced 3 days before the start of mimosine infusion, approximately halved the amount of mimosine required to defleece sheep. The provision of a high intake of energy, together with large amounts of amino acids available for absorption from the small intestines (supplied by casein), for at least 1 week prior to mimosine infusion, completely prevented defleecing with the standard infusion of mimosine. The effects of these nutritional treatments could be obviated by a 4-day fast as described above. Also, increasing the rate of infusion of mimosine to 120 mg/kg/day largely overcame the effects of previous high nutrition. Relatively reater amounts of mimosine were required to defleece lambs than adults. The concentration of mimosine in plasma was related to the rate of infusion of mimosine. However, fasting and a low dietary intake tended to enhance the concentration of mimosine in plasma for a given rate of infusion. Infusion of mimosine at the standard rate resulted in plasma mimosine concentrations of the order of 100 µmoles/l, but this concentration did not ensure that defleecing would be possible. MenosAbstract: The effectiveness of mimosine as a chemical defleecing agent was assessed in adult sheep that were subjected to a variety of nutritional treatments prior to administration of mimosine, and in lambs receiving relatively high feed intakes. Mimosine was given as a continuous intravenous infusion over a period of 2 days. Sheep receiving 600 g of a roughage-based diet per day were consistently defleeced following an infusion of mimosine at the rate of 80 mg/kg/day (designated the standard infusion). The prior feeding of a reduced intake of this diet (300 g/day) did not alter the amount of mimosine required to defleece sheep. Likewise, the prior abomasal infusion of an imbalanced mixture of amino acids, which depressed the wool growth rate, did not allow defleecing with a reduced amount of mimosine. A 4-day fast, commenced 3 days before the start of mimosine infusion, approximately halved the amount of mimosine required to defleece sheep. The provision of a high intake of energy, together with large amounts of amino acids available for absorption from the small intestines (supplied by casein), for at least 1 week prior to mimosine infusion, completely prevented defleecing with the standard infusion of mimosine. The effects of these nutritional treatments could be obviated by a 4-day fast as described above. Also, increasing the rate of infusion of mimosine to 120 mg/kg/day largely overcame the effects of previous high nutrition. Relatively reater amounts of mimosine were... Mostrar Tudo |
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Palavras-Chave: |
Mimosina. |
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Thesagro: |
Nutrição animal; Ovino. |
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Thesaurus Nal: |
Mimosine; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02523naa a2200205 a 4500
001 2052092
005 2016-10-03
008 1978 bl uuuu u00u1 u #d
024 7 $a10.1071/AR9781057$2DOI
100 1 $aREIS, P. J.
245 $aThe influence of nutrition on the effectiveness of mimosine for defleecing sheep.
260 $c1978
520 $aAbstract: The effectiveness of mimosine as a chemical defleecing agent was assessed in adult sheep that were subjected to a variety of nutritional treatments prior to administration of mimosine, and in lambs receiving relatively high feed intakes. Mimosine was given as a continuous intravenous infusion over a period of 2 days. Sheep receiving 600 g of a roughage-based diet per day were consistently defleeced following an infusion of mimosine at the rate of 80 mg/kg/day (designated the standard infusion). The prior feeding of a reduced intake of this diet (300 g/day) did not alter the amount of mimosine required to defleece sheep. Likewise, the prior abomasal infusion of an imbalanced mixture of amino acids, which depressed the wool growth rate, did not allow defleecing with a reduced amount of mimosine. A 4-day fast, commenced 3 days before the start of mimosine infusion, approximately halved the amount of mimosine required to defleece sheep. The provision of a high intake of energy, together with large amounts of amino acids available for absorption from the small intestines (supplied by casein), for at least 1 week prior to mimosine infusion, completely prevented defleecing with the standard infusion of mimosine. The effects of these nutritional treatments could be obviated by a 4-day fast as described above. Also, increasing the rate of infusion of mimosine to 120 mg/kg/day largely overcame the effects of previous high nutrition. Relatively reater amounts of mimosine were required to defleece lambs than adults. The concentration of mimosine in plasma was related to the rate of infusion of mimosine. However, fasting and a low dietary intake tended to enhance the concentration of mimosine in plasma for a given rate of infusion. Infusion of mimosine at the standard rate resulted in plasma mimosine concentrations of the order of 100 µmoles/l, but this concentration did not ensure that defleecing would be possible.
650 $aMimosine
650 $aSheep
650 $aNutrição animal
650 $aOvino
653 $aMimosina
700 1 $aTUNKS, D. A.
773 $tAustralian Journal of Agricultural Research$gv. 29, n. 5, p. 1057-1064, 1978.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 85 | |
| 22. |  | FRANCO, R. A.; REIS, P. R.; ZACARIAS, M. S.; ALTOÉ, B. F. Potencial de predação de três espécies de fitoseídeos sobre Oligonychus ilicis (McGREGOR, 1917)(Acari: Tetranychidae). In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 5., 2007, Águas de Lindóia, SP. Anais... Brasília, DF: Embrapa Café, 2007.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Café. |
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| 33. | | FARINAS, C. S.; REIS, P. C.; FERRAZ, H. C.; SALIM, V. M. M.; ALVES, T. L. M. Adsorption of myoglobin onto hydroxyapatite modified with metal ions. Adsorption Science & Technology, [S. l.], v. 25, n. 10, p. 717-727, 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Instrumentação. |
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| 34. | | ALMEIDA, J. E. M. de; MORI, A. E.; POZZA, E. A.; REIS, P. R.; FIGUEIRA, A. dos R. Análise temporal e controle da mancha-anular e do ácaro vetor do Coffee ringspot virus. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 7, p. 913-919, jul, 2012. Título em inglês: Temporal analysis and control of the ringspot disease and mite vector of Coffee ringspot virus.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 35. | | SILVA, R. R. da; TEODORO, A. V.; SILVA, M. de J. de S.; REIS, P. R.; SILVA, S. S. Compatibility of pesticides with the generalist predatory mite amblyseius largoensis (Acari: Phytoseiidae). Revista Colombiana de Entomologia, Santafe de Bogotá, CO, v. 41, n. 1, p. 76-80, jan./jun. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
|  |
| 36. | | REIS, P. C. M. dos; RUSCHEL, A. R.; REIS, L. P.; SOARES, M. H. M.; SILVA, J. N. M. Dinâmica de espécies da família Lecythidaceae, após a exploração florestal, no município de Moju-PA. In: REUNIÃO ANUAL DA SBPC, 64., São Luis, 2012. Ciência, cultura e saberes tradicionais para enfrentar a pobreza. São Luís: SBPC: UFMA, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 37. | | REIS, L. P.; RUSCHEL, A. R.; REIS, P. C. M. dos; SOARES, M. H. M.; SILVA, J. N. M. Dinâmica de espécies do gênero Manilkara após a exploração madeireira no município de Moju, estado do Pará. In: REUNIÃO ANUAL DA SBPC, 64., São Luis, 2012. Ciência, cultura e saberes tradicionais para enfrentar a pobreza. São Luís: SBPC: UFMA, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 38. | | REIS, L. P.; RUSCHEL, A. R.; SOARES, M. H. M.; REIS, P. C. M. dos; SILVA, J. N. M. Dinâmica de espécimes da família Sapotaceae após a colheita de madeiras na Floresta Nacional do Tapajós, PA. In: CONGRESSO NACIONAL DE BOTÂNICA, 62., 2011, Fortaleza. Botânica e desenvolvimento sustentável: [anais]. Fortaleza: EdUECE, 2011. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 39. | | REIS, L. P.; RUSCHEL, A. R.; REIS, P. C. M. dos; SOARES, M. H. M.; MAZZEI, L. Efeito da exploração de impacto reduzido na biomassa florestal no leste da Amazônia. In: CONGRESSO NACIONAL DE BOTÂNICA, 64.; ENCONTRO REGIONAL DE BOTANICOS MG, BA E ES, 23., 2013, Belo Horizonte. Anais... Belo Horizonte: SBB, 2013.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 40. | | MARAFELI, P. de P.; ZACARIAS, M. S.; REIS, P. R.; OLIVEIRA, A. C. S. de; MESQUITA, D. N. Ocorrência e identificação de vespas predadoras (Hymenoptera: vespidae) em cafezal orgânico em formação (Coffea arabica L) e sua relação com a predação do bicho mineiro, Leucoptera coffeella (GUÉR.-MÈNEV., 1942)(Lepidoptera: Lyonetiidae). In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 5., 2007, Águas de Lindóia, SP. Anais... Brasília, DF: Embrapa Café, 2007.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Café. |
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| Registros recuperados : 85 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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