In vitro estimation of rumen fermentable organic matter using enzymes
| Autor: | A.H. van Gelder, A.M. van Vuuren, John W. Cone |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1996 |
| Předmět: |
Starch
Fraction (chemistry) In situ chemistry.chemical_compound Rumen In vitro Organic matter Food science Amylase Instituut voor Dierhouderij en Diergezondheid chemistry.chemical_classification biology ID-Lelystad Viscozyme food and beverages Carbohydrate Fermentable organic matter Agricultural and Biological Sciences (miscellaneous) ID Lelystad chemistry Biochemistry ID-Lelystad Instituut voor Dierhouderij en Diergezondheid ID Lelystad Institute for Animal Science and Health biology.protein Degradation (geology) Fermentation Institute for Animal Science and Health |
| Zdroj: | Netherlands Journal of Agricultural Science 44 (1996) 2 Netherlands Journal of Agricultural Science, 44(2), 103-110 |
| ISSN: | 0028-2928 |
| Popis: | The amount of rumen fermentable organic matter (FOM) can be calculated using tables, taking into account the amount of digestible organic matter, the content of fat and fermentation products, and the amount of starch and protein escaping rumen fermentation, or FOM can be calculated using in situ incubations. An in vitro method is described to predict FOM using amylase and other carbohydrate degrading enzymes. FOM estimated by the enzymic method showed a moderate correlation (Rsuperscript 2 = 0.71) with FOM estimated by the in situ method. The relationship could be improved by separating the high crude fibre samples (Rsuperscript 2 = 0.88) from the other samples (Rsuperscript 2 = 0.77). Because degradation rates with the enzymic method were high compared with the assumed rumen passage rates, it proved that FOM could be predicted with a similar accuracy (Rsuperscript 2 = 0.76 - 0.80) by the undegraded fraction after 24 h. |
| Databáze: | OpenAIRE |
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