Effects of four mono- and sesquiterpenes on consumption of alfalfa pellets by sheep

TitleEffects of four mono- and sesquiterpenes on consumption of alfalfa pellets by sheep
Publication TypeJournal Article
Year of Publication2002
AuthorsEstell RE, Fredrickson E.L., Anderson D.M., Havstad K, Remmenga M.D.
JournalJournal of Animal Science
Date PublishedDecember 1, 2002
ARIS Log Number130735
Keywordsalfalfa pellets, consumption, individual terpenes, sheep
AbstractEffects of individual terpenes on alfalfa pellet intake by lambs were examined in four experiments. Forty-five lambs (9 lambs/treatment) were individually fed alfalfa pellets sprayed with either camphene, myrcene, caryophyllene oxide, or beta-pinene at one of five concentrations (one terpene per experiment). Treatments (0, .5, 1, 2, and 10X) were multiples of the concentration (X) of a specific terpene in tarbush. Terpenes were applied to alfalfa pellets (.64 kg.lamb-1.d-1, DM basis) and consumption wa measured during a 20-min interval for 5 d. Lambs were maintained and fed alfalfa pellets in one group (except during 20-min tests) at a mean total daily intake of 4.7% of BW (DM basis). Camphene and caryophyllene oxide tended to decrease intake (linear contrasts were P = .0651 and P = .0504, respectively), while myrcene and beta-pinene exerted no effect on consumption of alfalfa pellets by lambs during the 20-min interval. Camphene and caryophyllene oxide may be involved in the differential herbivory of individual tarbush plants by livestock.