Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle

Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle

12 páginas, 7 tablas.

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Bibliographic Details
Main Authors: Gimeno, A., Al Alami, A., Toral, Pablo G., Frutos, Pilar, Abecia, Leticia, Fondevila, M., Castrillo, Carlos
Other Authors: Ministerio de Ciencia e Innovación (España)
Format: artículo biblioteca
Language:English
Published: Elsevier
Subjects:Acidosis, Beef cattle, Pelleting, Rumen Biohydrogenation, Rumen microbiota, Starch,
Online Access:http://hdl.handle.net/10261/121281
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100010067
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spelling dig-igm-es-10261-1212812021-03-18T16:13:20Z Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle Gimeno, A. Al Alami, A. Toral, Pablo G. Frutos, Pilar Abecia, Leticia Fondevila, M. Castrillo, Carlos Ministerio de Ciencia e Innovación (España) Gobierno de Aragón European Commission Acidosis Beef cattle Pelleting Rumen Biohydrogenation Rumen microbiota Starch 12 páginas, 7 tablas. Eight 5-month old, rumen-cannulated Holstein male calves were used in a three months experiment to study the effect of the cereal in the concentrate (0.53 of maize, M, or 0.67 of barley, B) given either ground (GR) or pelleted to 6. mm (PE) on rumen fermentation and microbiota in intensive feeding conditions. Four calves received M and the other four B, offered either GR or PE in two consecutive 45-day periods, together with straw. On days 41 and 43 of each period, the feed intake pattern was recorded and rumen contents were sampled before the morning feeding (0. h) and after 4 and 8. h to determine rumen pH and total volatile fatty acids (VFA), lactic acid, ammonia and fatty acids (FA) concentration, and to characterise bacterial and protozoal populations. Compared with those given M, calves fed B showed lower rumen pH (5.64 vs. 6.14, P=0.001) and higher total VFA concentration (140. mmol/l vs. 113. mmol/l, P=0.014) 4. h after feeding, and a greater proportion of records of pH below 5.6 (0.27 vs. 0.10, P=0.039) and VFA over 150. mmol/l (0.18 vs. 0.02, P=0.019), benchmarks of subacute ruminal acidosis (SARA). Feeding B resulted in lower (P=0.072) and higher (P=0.059) proportions of acetic and propionic acids, respectively, with sampling time differences for this diet, as well as more variable ammonia concentrations (P<0.001). On the other hand, concentrates processed as PE promoted a lower acetic to propionic ratio, this effect being more evident with M (1.15 vs. 2.39, P=0.003), and a more pronounced pH drop from 0 to 4. h after feeding compared with those given GR (1.01 vs. 0.87 pH units, P=0.059). Only minor effects were observed on either FA concentrations or rumen microbiota. The more abrupt rumen fermentation induced by B may be due to the more rapidly degradation rate of its starch combined with a greater concentrate intake during the first 4. h (2.83 vs. 2.43. kg dry matter, P=0.031), which was not affected by the concentrate processing. The results suggest that barley-based diets would cause a less favourable rumen fermentation that might increase the risk of SARA compared with maize diets, whereas pelleting the concentrates at 6. mm would not affect the feed intake pattern and would not be advisable to avoid SARA compared with grinding. The present work was funded by the Spanish Ministry for Science and Innovation (MICINN; project AGL2009-12026), with the participation of the Department of Industry and Innovation of the Government of Aragón, and the European Social Fund. Mr. A. Gimeno received a FPI grant from the MICINN and Dr. A. Al Alami was awarded a fellowship of the Spanish Agency for International Cooperation and Development. Peer reviewed 2015-05 artículo http://purl.org/coar/resource_type/c_6501 Animal Feed Science and Technolology 203: 67-78 (2015) 0377-8401 http://hdl.handle.net/10261/121281 10.1016/j.anifeedsci.2015.03.003 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100010067 en http://dx.doi.org/10.1016/j.anifeedsci.2015.03.003 Sí open Elsevier
institution IGM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-igm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IGM España
language English
topic Acidosis
Beef cattle
Pelleting
Rumen Biohydrogenation
Rumen microbiota
Starch
Acidosis
Beef cattle
Pelleting
Rumen Biohydrogenation
Rumen microbiota
Starch
spellingShingle Acidosis
Beef cattle
Pelleting
Rumen Biohydrogenation
Rumen microbiota
Starch
Acidosis
Beef cattle
Pelleting
Rumen Biohydrogenation
Rumen microbiota
Starch
Gimeno, A.
Al Alami, A.
Toral, Pablo G.
Frutos, Pilar
Abecia, Leticia
Fondevila, M.
Castrillo, Carlos
Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle
description 12 páginas, 7 tablas.
author2 Ministerio de Ciencia e Innovación (España)
author_facet Ministerio de Ciencia e Innovación (España)
Gimeno, A.
Al Alami, A.
Toral, Pablo G.
Frutos, Pilar
Abecia, Leticia
Fondevila, M.
Castrillo, Carlos
format artículo
topic_facet Acidosis
Beef cattle
Pelleting
Rumen Biohydrogenation
Rumen microbiota
Starch
author Gimeno, A.
Al Alami, A.
Toral, Pablo G.
Frutos, Pilar
Abecia, Leticia
Fondevila, M.
Castrillo, Carlos
author_sort Gimeno, A.
title Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle
title_short Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle
title_full Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle
title_fullStr Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle
title_full_unstemmed Effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle
title_sort effect of grinding or pelleting high grain maize- or barley-based concentrates on rumen environment and microbiota of beef cattle
publisher Elsevier
url http://hdl.handle.net/10261/121281
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100010067
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