Tropical Animal Health and Production

, Volume 44, Issue 4, pp 697–706

Effects of tea saponins on rumen microbiota, rumen fermentation, methane production and growth performance—a review

Review Article

DOI: 10.1007/s11250-011-9960-8

Cite this article as:
Wang, JK., Ye, JA. & Liu, JX. Trop Anim Health Prod (2012) 44: 697. doi:10.1007/s11250-011-9960-8

Abstract

Reducing methane emission from ruminant animals has implications not only for global environmental protection but also for efficient animal production. Tea saponins (TS) extracted from seeds, leaves or roots of tea plant are pentacyclic triterpenes. They have a lasting antiprotozoal effect, but little effect on the methanogen population in sheep. There was no significant correlation between the protozoa counts and methanogens. The TS decreased methanogen activity. It seems that TS influenced the activity of the methanogens indirectly via the depressed ciliate protozoal population. The TS addition decreased fungal population in the medium containing rumen liquor in in vitro fermentation, but no such effect was observed in the rumen liquor of sheep fed TS. Tea saponins had a minor effect on the pattern of rumen fermentation and hence on nutrient digestion. When added at 3 g/day in diets, TS could improve daily weight gain and feed efficiency in goats. No positive associative effect existed between TS and disodium fumarate or soybean oil on methane suppression. Inclusion of TS in diets may be an effective way for improving feed efficiency in ruminants.

Keywords

Tea saponins Rumen microbiota Rumen fermentation Growth performance Hydrogen acceptor 

Abbreviations

DF

Disodium fumarate

DGGE

Denaturing gradient gel electrophoresis

DM

Dry matter

IPCC

Intergovernmental Panel on Climate Change

MCP

Microbial protein

mcrA

Methyl-coenzyme M reductase

SO

Soybean oil

TS

Tea saponins

TSDF

Tea saponins plus disodium fumarate

VFA

Volatile fatty acids

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Institute of Dairy Science, College of Animal SciencesZhejiang UniversityHangzhouPeople’s Republic of China

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