Journal article
Effects of mixtures of lauric and myristic acid on rumen methanogens and methanogenesis in vitro.
- Soliva CR Institute of Animal Science, Animal Nutrition, Institute of Food Science, Laboratory of Food Microbiology, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland. carla.soliva@inw.agrl.ethz.ch
- Hindrichsen IK
- Meile L
- Kreuzer M
- Machmüller A
- 2003-06-14
Published in:
- Letters in applied microbiology. - 2003
Animals
Anti-Infective Agents
Cattle
Dose-Response Relationship, Drug
Drug Combinations
Euryarchaeota
Lauric Acids
Methane
Myristic Acid
Rumen
English
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.
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.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1046/j.1472-765x.2003.01343.x
- PMID 12803553
- Persistent URL
- https://folia.unifr.ch/global/documents/122482
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