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The influence of headspace gas composition on the production of VFA by rumen ciliate protozoa
Author(s) -
Hillman K.,
Williams A.G.,
Lloyd D.
Publication year - 1991
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1991.tb00557.x
Subject(s) - protozoa , rumen , propionate , ciliate , butyrate , biology , volatile fatty acids , bacteria , food science , zoology , microbiology and biotechnology , biochemistry , ecology , fermentation , genetics
The effects of various gas phases of CO 2 , CH 4 , H 2 and O 2 (in N 2 ) on the metabolism in vitro of rumen ciliate protozoa were monitored in terms of changes in the rates of production of acetate, butyrate and propionate. Different atmospheres resulted in considerable differences in the proportions of volatile fatty acids produced by the protozoa, suggesting that the type of headspace gas used in studies of these protozoa can profoundly influence the results obtained.