| Effects of mixtures of lauric and myristic acid on rumen methanogens and methanogenesis in vitro. | |
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MedLine Citation:
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PMID: 12803553 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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C R Soliva; I K Hindrichsen; L Meile; M Kreuzer; A Machmüller |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Letters in applied microbiology Volume: 37 ISSN: 0266-8254 ISO Abbreviation: Lett. Appl. Microbiol. Publication Date: 2003 |
Date Detail:
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Created Date: 2003-06-13 Completed Date: 2003-08-25 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8510094 Medline TA: Lett Appl Microbiol Country: England |
Other Details:
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Languages: eng Pagination: 35-9 Citation Subset: IM |
Affiliation:
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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 |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Anti-Infective Agents / pharmacology* Cattle Dose-Response Relationship, Drug Drug Combinations Euryarchaeota / drug effects*, growth & development Lauric Acids / pharmacology* Methane / metabolism Myristic Acid / pharmacology* Rumen / microbiology* |
| Chemical | |
Reg. No./Substance:
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0/Anti-Infective Agents; 0/Drug Combinations; 0/Lauric Acids; 143-07-7/lauric acid; 544-63-8/Myristic Acid; 74-82-8/Methane |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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