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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
In vitro assessment of ruminal fermentation characteristics of tropical browse mixtures supplemented with yeast
Grassland Science, Volume 58, No. 1, Year 2012
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Description
An in vitro ruminal gas production study was conducted to assess the effect of yeast supplementation on rumen fermentation of tanniniferous tropical browse mixtures prepared by mixing Berchemia discolor with Acacia brevispica, Acacia elatior, Acacia mellifera, Balanites aegyptiaca, Grewia bicolor or Zizyphus mucronata in a 1:1 dry weight ratio. The six browse mixtures were incubated with buffered rumen fluid alone or supplemented with dried Japanese Sake yeast (JSY) or polyethylene glycol (PEG). Ruminal gas production characteristics were evaluated using the Gompertz equation. The JSY addition increased gas production volume (P<0.05) and numerically increased the maximum gas production rate constant. Time to reach the maximum gas production rate was shortened by PEG addition as compared to the JSY and control treatments. It is possible that JSY promoted the rumen microbial activity in addition to forming complexes with tannins thereby upgrading the in vitro ruminal digestion of tropical browse mixtures. © 2012 The Authors. Grassland Science © 2012 Japanese Society of Grassland Science.
Authors & Co-Authors
Wambui, Carolyne C.
Japan, Tottori
Tottori University
Japan, Matsue
Shimane University
Ando, Sada
Japan, Nishishirakawa District
National Livestock Breeding Center, Incorporated Administrative Agency
Abdulrazak, Shaukat Ali
Kenya, Nairobi
Kenya National Council for Science and Technology
Osuga, Isaac M.
Kenya, Nairobi
Kenyatta University
Ichinohe, Toshiyoshi
Japan, Matsue
Shimane University
Statistics
Citations: 5
Authors: 5
Affiliations: 5
Identifiers
Doi:
10.1111/j.1744-697X.2011.00236.x
ISSN:
17446961
e-ISSN:
1744697X