89692 20210902121707.0 doi 10.3390/ani10040732 sideral 117825 ART-2020-117825 eng Ortolani, Ignacio Rubén In vitro estimation of the effect of grinding on rumen fermentation of fibrous feeds 2020 Access copy available to the general public Unrestricted 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 (p < 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 (p < 0.05), whereas OH and BS resulted in the lowest gas volume (p < 0.05). During the first half of the incubation period, methane production was higher in GR than NP (p < 0.05). Among substrates, despite NP or GR, methane production with BP was the highest (p < 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. info:eu-repo/grantAgreement/ES/UZ-OTRI/2018-0366 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.752 2020 VETERINARY SCIENCES 19 / 146 = 0.13 2020 Q1 T1 AGRICULTURE, DAIRY & ANIMAL SCIENCE 13 / 63 = 0.206 2020 Q1 T1 0.583 2020 Veterinary (miscellaneous) 2020 Q1 Animal Science and Zoology 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0001-8932-4615 Amanzougarene, Zahia (orcid)0000-0002-0712-1185 Fondevila, Manuel Universidad de Zaragoza 2008 700 Universidad de Zaragoza Dpto. Produc.Animal Cienc.Ali. Área Producción Animal 10, 4 (2020), 732 [13 pp.] Animals (Basel) Animals 2076-2615 519145 http://zaguan.unizar.es/record/89692/files/texto_completo.pdf Versión publicada 494924 http://zaguan.unizar.es/record/89692/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:89692 articulos driver 2021-09-02-09:18:19 ARTICLE