Effects of disodium fumarate on in vitro rumen microbial growth, methane production and fermentation of diets differing in their forage:concentrate ratio

The effects of disodium fumarate on microbial growth, CH4 production and fermentation of three diets differing in their forage content (800, 500 and 200 g/kg DM) by rumen micro-organisms in vitro were studied using batch cultures. Rumen contents were collected from four Merino sheep. Disodium fumara...

Full description

Saved in:
Bibliographic Details
Published in:British journal of nutrition 2005-07, Vol.94 (1), p.71-77
Main Authors: García-Martínez, R., Ranilla, M. J., Tejido, M. L., Carro, M. D.
Format: Article
Language:English
Subjects:
Acetates - metabolism
Ammonia - metabolism
anaerobic digestion
Animal Feed
Animals
Batch cultures
Biological and medical sciences
Diet
Dietary Supplements
Digestion - physiology
Fatty acids
feed additives
feed concentrates
Feeds
Fermentation
Forage
Fumarate
Fumarates - administration & dosage
fumaric acid
Fundamental and applied biological sciences. Psychology
Hydrogen-Ion Concentration - drug effects
in vitro digestion
Incubation
Intestine. Mesentery
Lactates - metabolism
Methane
Methane - metabolism
microbial growth
Oil and gas production
Organic matter
Propionates - metabolism
Rumen - microbiology
rumen fermentation
Rumen microbial growth
rumen microorganisms
Sheep
Sheep - metabolism
Sheep - physiology
sheep feeding
Vertebrates: digestive system
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of disodium fumarate on microbial growth, CH4 production and fermentation of three diets differing in their forage content (800, 500 and 200 g/kg DM) by rumen micro-organisms in vitro were studied using batch cultures. Rumen contents were collected from four Merino sheep. Disodium fumarate was added to the incubation bottles to achieve final concentrations of 0, 4 and 8 mm-fumarate, and 15N was used as a microbial marker. Gas production was measured at regular intervals from 0 to 120 h of incubation. Fumarate did not affect (P>0·05) any of the measured gas production parameters. In 17 h incubations, the final pH and the production of acetate and propionate were increased linearly (P0·05) were observed for the other two diets. These results indicate that the effects of fumarate on rumen fermentation depend on the nature of the incubated substrate, the high-forage diet showing the greatest response.
ISSN:0007-1145
1475-2662
DOI:10.1079/BJN20051455