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- Title
Effects of mixtures of lauric and myristic acid on rumen methanogens and methanogenesis in vitro.
- Authors
Soliva, C.R.; Hindrichsen, I.K.; Meile, L.; Kreuzer, M.; Machmüller, A.
- Abstract
Abstract Aims: To identify the most effective mixture of non-esterified lauric (C12 ) and myristic (C14 ) acid in suppressing ruminal methanogenesis, and to investigate their effects on the methanogenic population. Methods and Results: C12 /C14 mixtures were incubated with rumen fluid using the Hohenheim gas test apparatus. Methane production and the numbers of Archaea declined with an increasing proportion of C12 . With a 2 : 1 proportion of C12 /C14 , the maximum methane-suppressing effect (96%) was achieved similar to that with C12 alone. The proportions of the individual methanogenic orders of total methanogens were altered by varying the C12 /C14 ratio. Conclusions: Although C14 alone had no effect on methanogenesis, C14 enhanced the methane-suppressing effect of C12 in certain mixtures. Significance and Impact of the Study: The results support strategies for an environment-friendly ruminant nutrition as it was demonstrated that part of the less palatable C12 could be replaced by C14 without losing its methane-suppressing potential.
- Subjects
RUMEN (Ruminants); LAURIC acid; METHANE; INTESTINAL infections; FATTY acids
- Publication
Letters in Applied Microbiology, 2003, Vol 37, Issue 1, p35
- ISSN
0266-8254
- Publication type
Article
- DOI
10.1046/j.1472-765X.2003.01343.x