Models based on the mitscherlich equation for describing typical and atypical gas production profiles obtained from in vitro digestibility studies using equine faecal Inoculum
19 páginas, 5 tablas, 2 figuras.
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Multidisciplinary Digital Publishing Institute
2020
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| Subjects: | Gas production technique, In vitro digestibility, Mitscherlich equation, Feedstuff evaluation, Fermentation kinetics, Substrate degradation, |
| Online Access: | http://hdl.handle.net/10261/220922 http://dx.doi.org/10.13039/501100000038 |
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dig-igm-es-10261-2209222023-01-04T10:10:55Z Models based on the mitscherlich equation for describing typical and atypical gas production profiles obtained from in vitro digestibility studies using equine faecal Inoculum Powell, C. D Dhanoa, M. S. Garber, A. Murray, J.M.D. López, Secundino Ellis, J. L. France, J. Natural Sciences and Engineering Research Council of Canada Gas production technique In vitro digestibility Mitscherlich equation Feedstuff evaluation Fermentation kinetics Substrate degradation 19 páginas, 5 tablas, 2 figuras. Two models are proposed to describe atypical biphasic gas production profiles obtained from in vitro digestibility studies. The models are extensions of the standard Mitscherlich equation, comprising either two Mitscherlich terms or one Mitscherlich and one linear term. Two models that describe typical monophasic gas production curves, the standard Mitscherlich and the France model [a generalised Mitscherlich (root-t) equation], were assessed for comparison. Models were fitted to 25 gas production profiles resulting from incubating feedstuffs with faecal inocula from equines. Seventeen profiles displayed atypical biphasic patterns while the other eight displayed typical monophasic patterns. Models were evaluated using statistical measures of goodness-of-fit and by analysis of residuals. Good agreement was found between observed atypical profiles values and fitted values obtained with the two biphasic models, and both can revert to a simple Mitscherlich allowing them to describe typical monophasic profiles. The models contain kinetic fermentation parameters that can be used in conjunction with substrate degradability information and digesta passage rate to calculate extent of substrate degradation in the rumen or hindgut. Thus, models link the in vitro gas production technique to nutrient supply in the animal by providing information relating to digestion and nutritive value of feedstuffs. This research in addition to the APC were funded by The Canada Research Chairs program, grant number 045867 (Natural Sciences and Engineering Research Council of Canada, Ottawa). 2020-10-07T10:40:02Z 2020-10-07T10:40:02Z 2020 2020-10-07T10:40:02Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.3390/ani10020308 issn: 2076-2615 Animals 10: 308 (2020) http://hdl.handle.net/10261/220922 10.3390/ani10020308 http://dx.doi.org/10.13039/501100000038 32079159 Publisher's version http://dx.doi.org/10.3390/ani10020308 Sí open Multidisciplinary Digital Publishing Institute |
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Gas production technique In vitro digestibility Mitscherlich equation Feedstuff evaluation Fermentation kinetics Substrate degradation Gas production technique In vitro digestibility Mitscherlich equation Feedstuff evaluation Fermentation kinetics Substrate degradation |
| spellingShingle |
Gas production technique In vitro digestibility Mitscherlich equation Feedstuff evaluation Fermentation kinetics Substrate degradation Gas production technique In vitro digestibility Mitscherlich equation Feedstuff evaluation Fermentation kinetics Substrate degradation Powell, C. D Dhanoa, M. S. Garber, A. Murray, J.M.D. López, Secundino Ellis, J. L. France, J. Models based on the mitscherlich equation for describing typical and atypical gas production profiles obtained from in vitro digestibility studies using equine faecal Inoculum |
| description |
19 páginas, 5 tablas, 2 figuras. |
| author2 |
Natural Sciences and Engineering Research Council of Canada |
| author_facet |
Natural Sciences and Engineering Research Council of Canada Powell, C. D Dhanoa, M. S. Garber, A. Murray, J.M.D. López, Secundino Ellis, J. L. France, J. |
| format |
artículo |
| topic_facet |
Gas production technique In vitro digestibility Mitscherlich equation Feedstuff evaluation Fermentation kinetics Substrate degradation |
| author |
Powell, C. D Dhanoa, M. S. Garber, A. Murray, J.M.D. López, Secundino Ellis, J. L. France, J. |
| author_sort |
Powell, C. D |
| title |
Models based on the mitscherlich equation for describing typical and atypical gas production profiles obtained from in vitro digestibility studies using equine faecal Inoculum |
| title_short |
Models based on the mitscherlich equation for describing typical and atypical gas production profiles obtained from in vitro digestibility studies using equine faecal Inoculum |
| title_full |
Models based on the mitscherlich equation for describing typical and atypical gas production profiles obtained from in vitro digestibility studies using equine faecal Inoculum |
| title_fullStr |
Models based on the mitscherlich equation for describing typical and atypical gas production profiles obtained from in vitro digestibility studies using equine faecal Inoculum |
| title_full_unstemmed |
Models based on the mitscherlich equation for describing typical and atypical gas production profiles obtained from in vitro digestibility studies using equine faecal Inoculum |
| title_sort |
models based on the mitscherlich equation for describing typical and atypical gas production profiles obtained from in vitro digestibility studies using equine faecal inoculum |
| publisher |
Multidisciplinary Digital Publishing Institute |
| publishDate |
2020 |
| url |
http://hdl.handle.net/10261/220922 http://dx.doi.org/10.13039/501100000038 |
| work_keys_str_mv |
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