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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
20/06/1995 |
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Data da última atualização: |
20/06/1995 |
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Autoria: |
DONEFER, E.; NIEMANN, P. J.; CRAMPTON, E. W.; LLOYD, L. E. |
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Título: |
Dry matter disappearance by enzyme and aqueous solutions to predict the nutritive value of forages. |
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Ano de publicação: |
1963 |
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Fonte/Imprenta: |
Journal of Dairy Science, v.46, n.9, p.965-970, 1963. |
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Idioma: |
Inglês |
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Conteúdo: |
Studies are reported on the development of a simple and rapid laboratory technique for predicting the digestible energy potential of a forage as expressed by its Nutritive Value Index (NVI). A 1-g forage sample was placed in a 200-ml serew-cap centrifuge bottle to which was added 75 ml of test solution, with or without enzyme addition. The samples were agitated 24 hr in an A.O.A.C. pepsin digester placed in an incubator held at 40 C. Following agitation, the bottles were centrifuged at 1,900 rpm for 10 min and the residue transferred to preweighed Selas filtering crucibles for dry matter determinations, with dry matter disappearance (DMD) calculations based on the original dry matter content of the forage substrates. The following highly significant (P < .01) correlations were found between the Nutritive Value Indices of 14 forages as determined in vivo with sheep and per cent DMD with (A) distilled water, 0.90; (B) KH phthalate buffer solution (pH 4), 0.91; (C) phthalate buffer + cellulase, 0.92; (D) phthalate buffer + cellulase and pepsin, 0.93; (E) 0.075 n HCl solution, 0.94; and (F) HCl solution + pepsin, 0.95. The correlation (0.19) between NVI and per cent DMD with (G) 0.01 n NaOH solution was not significant. In vitro cellulose digestion of the forages, determined after a 12-hr fermentation period, was also significantly correlated (P < .01) with NVI (r = 0.86). |
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Palavras-Chave: |
Dry matter; Enzyme. |
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Thesagro: |
Digestibilidade; Enzima; Forragem; Matéria Seca; Valor Nutritivo. |
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Thesaurus Nal: |
digestibility; forage; nutritive value. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02138naa a2200277 a 4500
001 1784616
005 1995-06-20
008 1963 bl --- 0-- u #d
100 1 $aDONEFER, E.
245 $aDry matter disappearance by enzyme and aqueous solutions to predict the nutritive value of forages.
260 $c1963
520 $aStudies are reported on the development of a simple and rapid laboratory technique for predicting the digestible energy potential of a forage as expressed by its Nutritive Value Index (NVI). A 1-g forage sample was placed in a 200-ml serew-cap centrifuge bottle to which was added 75 ml of test solution, with or without enzyme addition. The samples were agitated 24 hr in an A.O.A.C. pepsin digester placed in an incubator held at 40 C. Following agitation, the bottles were centrifuged at 1,900 rpm for 10 min and the residue transferred to preweighed Selas filtering crucibles for dry matter determinations, with dry matter disappearance (DMD) calculations based on the original dry matter content of the forage substrates. The following highly significant (P < .01) correlations were found between the Nutritive Value Indices of 14 forages as determined in vivo with sheep and per cent DMD with (A) distilled water, 0.90; (B) KH phthalate buffer solution (pH 4), 0.91; (C) phthalate buffer + cellulase, 0.92; (D) phthalate buffer + cellulase and pepsin, 0.93; (E) 0.075 n HCl solution, 0.94; and (F) HCl solution + pepsin, 0.95. The correlation (0.19) between NVI and per cent DMD with (G) 0.01 n NaOH solution was not significant. In vitro cellulose digestion of the forages, determined after a 12-hr fermentation period, was also significantly correlated (P < .01) with NVI (r = 0.86).
650 $adigestibility
650 $aforage
650 $anutritive value
650 $aDigestibilidade
650 $aEnzima
650 $aForragem
650 $aMatéria Seca
650 $aValor Nutritivo
653 $aDry matter
653 $aEnzyme
700 1 $aNIEMANN, P. J.
700 1 $aCRAMPTON, E. W.
700 1 $aLLOYD, L. E.
773 $tJournal of Dairy Science$gv.46, n.9, p.965-970, 1963.
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Registro original: |
Embrapa Pantanal (CPAP) |
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