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Effects of Pleurotus sapidus (Schulzer) Sacc. treatment on nutrient composition and ruminal fermentability of barley straw, barley rootless, and a mixture of the two

Barley ( Hordeum vulgare L.), and its derivatives, ranks fourth in cereal production worldwide, and the Pleurotus species are among the most efficient types of lignocellulolytic white-rot fungi. The objective of this research study was to evaluate the degradation of barley straw and barley rootless...

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Published in:Chilean journal of agricultural research 2015-09, Vol.75 (3), p.313-319
Main Authors: Soto-Sánchez, Alfonso, Ramírez-Bribiesca, J. Efrén, Meneses-Mayo, Marcos, Loera-Corral, Octavio, Miranda-Romero, Luis A, Bárcena-Gama, Ricardo
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container_issue 3
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container_title Chilean journal of agricultural research
container_volume 75
creator Soto-Sánchez, Alfonso
Ramírez-Bribiesca, J. Efrén
Meneses-Mayo, Marcos
Loera-Corral, Octavio
Miranda-Romero, Luis A
Bárcena-Gama, Ricardo
description Barley ( Hordeum vulgare L.), and its derivatives, ranks fourth in cereal production worldwide, and the Pleurotus species are among the most efficient types of lignocellulolytic white-rot fungi. The objective of this research study was to evaluate the degradation of barley straw and barley rootless with an inoculum of Pleurotus to improve their nutritional availability as a food source for ruminants. Two experiments were conducted; the first was to determine the effects of inoculation of Pleurotus sapidus (Schulzer) Sacc. (PS) in barley straw (BS), barley rootless (BR), and a 75% BS and 25% BR mixture (M). The second experiment was to evaluate the same substrates in vitro ruminal fermentation. Barley rootless had better organic matter (OM) degradability than BS after 24 h incubation with PS. The protein content in BR was higher than in BS (P < 0.01). Enzyme activities had the highest concentration from the start of fermentation, and in vitro dry matter (DM) degradability in BS and BR increased after 8 and 24 d fermentation, respectively (P < 0.05). Propionic acid concentration was enhanced after 16 d fermentation in BR (P < 0.5). The use of BS combined with BR exhibited better fermentation; this result provides relevant information for integrating BR with other substrates and improving the use of straw, which can be more nutritionally available for feeding ruminants.
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subjects AGRICULTURE, MULTIDISCIPLINARY
AGRONOMY
Analysis
Barley
Cellulase
Cellulose
Diseases and pests
enzyme activity
Enzymes
Experiments
Feeds
Fermentation
Food
Fungi
Grain
Impact analysis
in vitro fermentation
Lignin
Nutritional aspects
Plastics
Proteins
Sorghum
Studies
title Effects of Pleurotus sapidus (Schulzer) Sacc. treatment on nutrient composition and ruminal fermentability of barley straw, barley rootless, and a mixture of the two
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