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Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2004;17(5): 643-647.
DOI: https://doi.org/10.5713/ajas.2004.643    Published online January 1, 2004.
Effects of Bacterial Fraction and Proportion of Silage and Concentrate on Rumen Fermentation and Gas Production Profile
Sang S. Lee, M. B. Chang, J. K. Ha
An in vitro experiment was carried out to investigate effects of solid associated (SAB) and liquid associated bacteria (LAB) and the type of incubation substrate on ruminal fermentation and gas production profiles. Bacterial fraction did not influence total numbers of bacteria. Gas production degradation parameters were significantly influenced by bacterial fraction and type of substrate (p<0.05). There was significant interaction between bacterial fraction and type of substrate in gas production (p<0.01). Total VFA concentration and acetic and propionic acid ratio were also influenced by bacterial fraction and type of substrate with little differences in individual VFA concentration
Keywords: Gas Production; Bacterial Fraction; VFA Concentration; Interaction

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