In Vitro Estimation of the Effect of Grinding on Rumen Fermentation of Fibrous Feeds
The fermentation patterns of six fiber sources, soybean hulls (SH), sugarbeet pulp (BP), palm kernel cake (PK), oat hulls (OH), dehydrated alfalfa meal (DA), and barley straw (BS) were evaluated for this study on the effect of their presentation form (non-processed, NP and ground, GR). Substrates we...
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doaj-00fcb06bceed4c59b0a156eb605d35bf2020-11-25T03:25:47ZengMDPI AGAnimals2076-26152020-04-011073273210.3390/ani10040732In Vitro Estimation of the Effect of Grinding on Rumen Fermentation of Fibrous FeedsIgnacio Rubén Ortolani0Zahia Amanzougarene1Manuel Fondevila2Departamento de Producción Animal y Ciencia de los Alimentos, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, M. Servet 177, 50013 Zaragoza, SpainDepartamento de Producción Animal y Ciencia de los Alimentos, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, M. Servet 177, 50013 Zaragoza, SpainDepartamento de Producción Animal y Ciencia de los Alimentos, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, M. Servet 177, 50013 Zaragoza, SpainThe fermentation patterns of six fiber sources, soybean hulls (SH), sugarbeet pulp (BP), palm kernel cake (PK), oat hulls (OH), dehydrated alfalfa meal (DA), and barley straw (BS) were evaluated for this study on the effect of their presentation form (non-processed, NP and ground, GR). Substrates were tested in a conventional in vitro batch system, using rumen fluid obtained from ewes fed 0.5 alfalfa hay and 0.5 barley straw. All substrates rendered a higher gas production in GR form (<i>p</i> < 0.05) except for BS but ranked similarly irrespective of the presentation form. Among the substrates, when incubated NP, the highest volume of gas was recorded with BP from 8 h onwards (<i>p</i> < 0.05), whereas OH and BS resulted in the lowest gas volume (<i>p</i> < 0.05). During the first half of the incubation period, methane production was higher in GR than NP (<i>p</i> < 0.05). Among substrates, despite NP or GR, methane production with BP was the highest (<i>p</i> < 0.05). Similarly, the presentation form did not qualitatively affect fermentation, as no differences were observed in volatile fatty acids proportions. The effect of particle size of fibrous substrates does not have a major impact on the rate and extent of the rumen microbial fermentation.https://www.mdpi.com/2076-2615/10/4/732in vitro fermentation patternfibrous sourcesnon-processedgroundgas production |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ignacio Rubén Ortolani Zahia Amanzougarene Manuel Fondevila |
spellingShingle |
Ignacio Rubén Ortolani Zahia Amanzougarene Manuel Fondevila In Vitro Estimation of the Effect of Grinding on Rumen Fermentation of Fibrous Feeds Animals in vitro fermentation pattern fibrous sources non-processed ground gas production |
author_facet |
Ignacio Rubén Ortolani Zahia Amanzougarene Manuel Fondevila |
author_sort |
Ignacio Rubén Ortolani |
title |
In Vitro Estimation of the Effect of Grinding on Rumen Fermentation of Fibrous Feeds |
title_short |
In Vitro Estimation of the Effect of Grinding on Rumen Fermentation of Fibrous Feeds |
title_full |
In Vitro Estimation of the Effect of Grinding on Rumen Fermentation of Fibrous Feeds |
title_fullStr |
In Vitro Estimation of the Effect of Grinding on Rumen Fermentation of Fibrous Feeds |
title_full_unstemmed |
In Vitro Estimation of the Effect of Grinding on Rumen Fermentation of Fibrous Feeds |
title_sort |
in vitro estimation of the effect of grinding on rumen fermentation of fibrous feeds |
publisher |
MDPI AG |
series |
Animals |
issn |
2076-2615 |
publishDate |
2020-04-01 |
description |
The fermentation patterns of six fiber sources, soybean hulls (SH), sugarbeet pulp (BP), palm kernel cake (PK), oat hulls (OH), dehydrated alfalfa meal (DA), and barley straw (BS) were evaluated for this study on the effect of their presentation form (non-processed, NP and ground, GR). Substrates were tested in a conventional in vitro batch system, using rumen fluid obtained from ewes fed 0.5 alfalfa hay and 0.5 barley straw. All substrates rendered a higher gas production in GR form (<i>p</i> < 0.05) except for BS but ranked similarly irrespective of the presentation form. Among the substrates, when incubated NP, the highest volume of gas was recorded with BP from 8 h onwards (<i>p</i> < 0.05), whereas OH and BS resulted in the lowest gas volume (<i>p</i> < 0.05). During the first half of the incubation period, methane production was higher in GR than NP (<i>p</i> < 0.05). Among substrates, despite NP or GR, methane production with BP was the highest (<i>p</i> < 0.05). Similarly, the presentation form did not qualitatively affect fermentation, as no differences were observed in volatile fatty acids proportions. The effect of particle size of fibrous substrates does not have a major impact on the rate and extent of the rumen microbial fermentation. |
topic |
in vitro fermentation pattern fibrous sources non-processed ground gas production |
url |
https://www.mdpi.com/2076-2615/10/4/732 |
work_keys_str_mv |
AT ignaciorubenortolani invitroestimationoftheeffectofgrindingonrumenfermentationoffibrousfeeds AT zahiaamanzougarene invitroestimationoftheeffectofgrindingonrumenfermentationoffibrousfeeds AT manuelfondevila invitroestimationoftheeffectofgrindingonrumenfermentationoffibrousfeeds |
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