SHORT COMMUNICATION
Effect of Picrasma quassioides plant extract, yeast
culture and monensin on in vitro mixed ruminal
microorganism fermentation of wheat starch
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College of Animal Science and Technology, Beef Cattle Research Center,
China Agricultural University,
Beijing 100094, P.R. China
Publication date: 2007-09-17
Corresponding author
Z. M. Zhou
College of Animal Science and Technology, Beef Cattle Research Center,
China Agricultural University,
Beijing 100094, P.R. China
J. Anim. Feed Sci. 2007;16(Suppl. 2):604-608
KEYWORDS
ABSTRACT
The objective of this study was to compare the plant extract from Picrasma quassioides
(EPQ), yeast culture and monensin on in vitro rumen fermentation characteristics of wheat starch.
Compared with the control (no additive), EPQ decreased the dry matter digestibility and the total
VFA production (P<0.05), and increased the ratio of acetate and propionate. Both EPQ and yeast
culture increased the final rumen pH (P<0.05), but monensin had a negative effect on decline of
rumen pH. In conclusion, the addition of EPQ can efficiently retard rumen fermentation rate of
wheat starch in vitro, and increase the final pH of ruminal fluid.
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