title: Effects of essential oils on ruminal microorganisms and their protein metabolism.
abstract: A commercial blend of essential oil (EO) compounds was added to a grass, maize silage, and concentrate diet fed to dairy cattle in order to determine their influence on protein metabolism by ruminal microorganisms. EO inhibited (P < 0.05) the rate of deamination of amino acids. Pure-culture studies indicated that the species most sensitive to EO were ammonia-hyperproducing bacteria and anaerobic fungi.
authors.affiliation: Rowett Research Institute, Bucksburn, Aberdeen AB21 9SB, United Kingdom. FMM@ROWETT.AC.UK
authors.forename: F M
authors.initials: FM
authors.lastname: McIntosh
authors.forename: P
authors.initials: P
authors.lastname: Williams
authors.forename: R
authors.initials: R
authors.lastname: Losa
authors.forename: R J
authors.initials: RJ
authors.lastname: Wallace
authors.forename: D A
authors.initials: DA
authors.lastname: Beever
authors.forename: C J
authors.initials: CJ
authors.lastname: Newbold
mesh_terms: D000818:Animals; D001419:Bacteria / Q000187:drug effects* / Q000254:growth & development; D001426:Bacterial Proteins / Q000378:metabolism*; D002417:Cattle; D005260:Female; D009822:Oils, Volatile / Q000494:pharmacology*; D012417:Rumen / Q000382:microbiology*
chemical_list: D001426:Bacterial Proteins; D009822:Oils, Volatile