Inclusion of glycerol in forage diets increases methane production in a rumen simulation technique system

We hypothesised that the inclusion of glycerol in the forage diets of ruminants would increase the proportion of propionate produced and thereby decrease in vitro CH4 production. This hypothesis was examined in the present study using a semi-continuous fermentation system (rumen simulation technique...

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Bibliographic Details
Published in:British journal of nutrition 2014-03, Vol.111 (5), p.829-835
Main Authors: Avila-Stagno, Jorge, Chaves, Alexandre V., O. Ribeiro, Gabriel, Ungerfeld, Emilio M., McAllister, Tim A.
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Bromus - chemistry
Bromus - microbiology
Carbohydrates
Cattle
Corn
Corn silage
Diet
Dietary Fiber - metabolism
Digestion
Fatty Acids, Volatile - metabolism
Feeding. Feeding behavior
Fermentation
Fundamental and applied biological sciences. Psychology
Gastrointestinal Contents - chemistry
Gastrointestinal Contents - enzymology
Gastrointestinal Contents - microbiology
Glycerol
Glycerol - adverse effects
Glycerol - metabolism
Gram-Negative Bacteria - growth & development
Gram-Negative Bacteria - isolation & purification
Gram-Negative Bacteria - metabolism
Gram-Positive Bacteria - growth & development
Gram-Positive Bacteria - isolation & purification
Gram-Positive Bacteria - metabolism
Greenhouse Effect - prevention & control
Hay
Herbivory
Methane
Methane - metabolism
Microbiology
Models, Biological
Oil and gas production
Rumen - metabolism
Rumen - microbiology
Saliva - chemistry
Saliva - enzymology
Silage - analysis
Silage - microbiology
Up-Regulation
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Zea mays - chemistry
Zea mays - microbiology
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Summary:We hypothesised that the inclusion of glycerol in the forage diets of ruminants would increase the proportion of propionate produced and thereby decrease in vitro CH4 production. This hypothesis was examined in the present study using a semi-continuous fermentation system (rumen simulation technique) fed a brome hay (8·5 g) and maize silage (1·5 g) diet with increasing concentrations (0, 50, 100 and 150 g/kg DM) of glycerol substituted for maize silage. Glycerol linearly increased total volatile fatty acids production (P
ISSN:0007-1145
1475-2662
DOI:10.1017/S0007114513003206