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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
12/09/2018 |
Data da última atualização: |
12/09/2018 |
Autoria: |
BRUCE, L. A.; LOBLEY, G. E.; MACRAE, J. C. |
Título: |
Measurement of volatile fatty acid production rates in sheep given roughage. |
Ano de publicação: |
1987 |
Fonte/Imprenta: |
Research in Veterinary Science, v. 42, n. 1, p. 47-52, Jan. 1987. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Measurement of the irreversible loss rate (ILR) of acetate, propionate and butyrate by radioisotope dilution of the respective tracers in sheep offered chopped dried grass from continuous belt type feeders gave 'plateau samples', the specific radioactivity of which had unacceptably high variance (coefficient of variation [cv] of the five or six samples taken from any one animal over the last four hours of 10 hours infusion ranged from 16 to 57 per cent). In an experiment which attempted to identify the source of this variability the distribution of the liquid phase marker 51Cr EDTA into different areas of the rumen was examined during its administration either in liquid form or impregnated on paper. The paper provided better mixing but incurred considerable spillage problems which would be unacceptable where calculations of ILR were required. Radiographic observations were made to examine the mixing of radio-opaque liquid and solid phase markers in the rumen. A better mixing of both was achieved with intermittent than continuous feeding. When 1-14C- and 2-14C-labelled acetate were each infused into the rumen of four sheep given two levels of chopped dried grass by means of hourly feeders, samples of rumen liquor gave much lower variability of the mean plateau specific radioactivity values than was obtained in experiment 1 (cv less than 15 per cent in all but one sheep). The ILRs of acetate and the transfer quotients of carbon from acetate to butyrate obtained using 1-14C- and 2-14C-labelled acetate were similar MenosAbstract: Measurement of the irreversible loss rate (ILR) of acetate, propionate and butyrate by radioisotope dilution of the respective tracers in sheep offered chopped dried grass from continuous belt type feeders gave 'plateau samples', the specific radioactivity of which had unacceptably high variance (coefficient of variation [cv] of the five or six samples taken from any one animal over the last four hours of 10 hours infusion ranged from 16 to 57 per cent). In an experiment which attempted to identify the source of this variability the distribution of the liquid phase marker 51Cr EDTA into different areas of the rumen was examined during its administration either in liquid form or impregnated on paper. The paper provided better mixing but incurred considerable spillage problems which would be unacceptable where calculations of ILR were required. Radiographic observations were made to examine the mixing of radio-opaque liquid and solid phase markers in the rumen. A better mixing of both was achieved with intermittent than continuous feeding. When 1-14C- and 2-14C-labelled acetate were each infused into the rumen of four sheep given two levels of chopped dried grass by means of hourly feeders, samples of rumen liquor gave much lower variability of the mean plateau specific radioactivity values than was obtained in experiment 1 (cv less than 15 per cent in all but one sheep). The ILRs of acetate and the transfer quotients of carbon from acetate to butyrate obtained using... Mostrar Tudo |
Thesaurus Nal: |
Acetates; Butyrates; Dietary fiber; Metabolism; Propionates; Sheep; Volatile fatty acids. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02165naa a2200229 a 4500 001 2095538 005 2018-09-12 008 1987 bl uuuu u00u1 u #d 100 1 $aBRUCE, L. A. 245 $aMeasurement of volatile fatty acid production rates in sheep given roughage. 260 $c1987 520 $aAbstract: Measurement of the irreversible loss rate (ILR) of acetate, propionate and butyrate by radioisotope dilution of the respective tracers in sheep offered chopped dried grass from continuous belt type feeders gave 'plateau samples', the specific radioactivity of which had unacceptably high variance (coefficient of variation [cv] of the five or six samples taken from any one animal over the last four hours of 10 hours infusion ranged from 16 to 57 per cent). In an experiment which attempted to identify the source of this variability the distribution of the liquid phase marker 51Cr EDTA into different areas of the rumen was examined during its administration either in liquid form or impregnated on paper. The paper provided better mixing but incurred considerable spillage problems which would be unacceptable where calculations of ILR were required. Radiographic observations were made to examine the mixing of radio-opaque liquid and solid phase markers in the rumen. A better mixing of both was achieved with intermittent than continuous feeding. When 1-14C- and 2-14C-labelled acetate were each infused into the rumen of four sheep given two levels of chopped dried grass by means of hourly feeders, samples of rumen liquor gave much lower variability of the mean plateau specific radioactivity values than was obtained in experiment 1 (cv less than 15 per cent in all but one sheep). The ILRs of acetate and the transfer quotients of carbon from acetate to butyrate obtained using 1-14C- and 2-14C-labelled acetate were similar 650 $aAcetates 650 $aButyrates 650 $aDietary fiber 650 $aMetabolism 650 $aPropionates 650 $aSheep 650 $aVolatile fatty acids 700 1 $aLOBLEY, G. E. 700 1 $aMACRAE, J. C. 773 $tResearch in Veterinary Science$gv. 42, n. 1, p. 47-52, Jan. 1987.
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Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
27/04/2020 |
Data da última atualização: |
27/04/2020 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
CASTELLANI, D. C.; MONTEIRO, R. E.; TAKAMATSU, J. A.; KATO, O. R.; RODRIGUES, M. do R. L.; MICCOLIS, A.; COSTA, M.; CASARA, J. |
Afiliação: |
D, C. CASTELLANI, NATURA INOVAÇÃO E TECNOLOGIA DE PRODUTOS Ltda; R. E. MONTEIRO, NATURA INOVAÇÃO E TECNOLOGIA DE PRODUTOS Ltda; J. A. TAKAMATSU, COOPERATIVA AGRÍCOLA MISTA DE TOMÉ-AÇÚ; OSVALDO RYOHEI KATO, CPATU; MARIA DO ROSARIO LOBATO RODRIGUES, CPAA; A. MICCOLIS, ComSensos Consultoria (Brasília, DF); M. COSTA, Indústria e Comércio de Comésticos Natura Ltda; J. CASARA, NATURA INOVAÇÃO E TECNOLOGIA DE PRODUTOS Ltda. |
Título: |
Estudo de sistemas agrossilviculturais para produção de dendê (Elaeis guianeensis) em propriedades rurais de Tomé-Açu (PA). |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 7., 2009, Luziánia. Diálogo e integração de saberes em sistemas agroflorestais para sociedades sustentáveis. [Luziânia]: Sociedade Brasileira de Sistemas Agroflorestais; [Brasília, DF]: EMATER-DF: Embrapa, 2009. |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Pará; Produção de dendê; Produção sustentável; Sistema agrossilvicuturais; Tomé-Açu. |
Thesagro: |
Dendê; Elaeis guineensis; Leguminosa; Planta oleaginosa. |
Thesaurus NAL: |
Amazonia. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/46196/1/01tema85.pdf
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Marc: |
LEADER 01208naa a2200337 a 4500 001 2121854 005 2020-04-27 008 2009 bl uuuu u00u1 u #d 100 1 $aCASTELLANI, D. C. 245 $aEstudo de sistemas agrossilviculturais para produção de dendê (Elaeis guianeensis) em propriedades rurais de Tomé-Açu (PA).$h[electronic resource] 260 $c2009 300 $c1 CD-ROM. 650 $aAmazonia 650 $aDendê 650 $aElaeis guineensis 650 $aLeguminosa 650 $aPlanta oleaginosa 653 $aBrasil 653 $aPará 653 $aProdução de dendê 653 $aProdução sustentável 653 $aSistema agrossilvicuturais 653 $aTomé-Açu 700 1 $aMONTEIRO, R. E. 700 1 $aTAKAMATSU, J. A. 700 1 $aKATO, O. R. 700 1 $aRODRIGUES, M. do R. L. 700 1 $aMICCOLIS, A. 700 1 $aCOSTA, M. 700 1 $aCASARA, J. 773 $tIn: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 7., 2009, Luziánia. Diálogo e integração de saberes em sistemas agroflorestais para sociedades sustentáveis. [Luziânia]: Sociedade Brasileira de Sistemas Agroflorestais; [Brasília, DF]: EMATER-DF: Embrapa, 2009.
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