Shifts in Rumen Fermentation and Microbiota Are Associated with Dissolved Ruminal Hydrogen Concentrations in Lactating Dairy Cows Fed Different Types of Carbohydrates123
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Key Words
rumen fermentation pathway
hydrogen
methane
dietary carbohydrate
starch
fiber
dairy cow
rumen microbe
Gibbs free energy
Abbreviations
DM
dry matter
ECM
energy-corrected milk
FC
forage content
FS
forage source
HF
high forage content
HF-RC
high forage content with 15% rice straw and 30% corn silage
HF-RS
high forage content with 45% rice straw
LF
low forage content
LF-RC
low forage content with 10% rice straw and 25% corn silage
LF-RS
low forage content with 35% rice straw
NDF
neutral detergent fiber
OM
organic matter
RC
rice straw and corn silage
RNH2
net hydrogen production relative to the amount of total volatile FA produced
RS
rice straw
VFA
volatile FA
Cited by (0)
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Supported by the National Natural Science Foundation of China (grant nos. 31561143009, 31320103917, and 31472133), the National Key Research and Development Program of China (grant no. 2016YFD0500504), the China Agriculture Research System (grant no. CARS-37) and the Hunan province science and technology plan (grant no. 2015WK3043).
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Author disclosures: M Wang, R Wang, TY Xie, PH Janssen, XZ Sun, KA Beauchemin, ZL Tan, and M Gao, no conflicts of interest
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Supplemental Tables 1–3 and Supplemental Figures 1–4 are available from the Online Supporting Material link in the online posting of the article and from the same link in the online table of contents at http://jn.nutrition.org.
Copyright © 2016 American Society for Nutrition. Published by Elsevier Inc. All rights reserved.