Effects of camphene, myrcene, caryophyllene oxide and beta-pinene on consumption of alfalfa pellets by sheep

TitleEffects of camphene, myrcene, caryophyllene oxide and beta-pinene on consumption of alfalfa pellets by sheep
Publication TypeConference Paper
Year of Publication2002
AuthorsEstell R.E., Fredrickson E.L., Anderson D.M., Havstad K, Remmenga M.D.
Conference Name2002 Joint Meeting, American Society of Animal Science/American Dairy Science Association
Date PublishedJuly 21-25, 2002
Conference LocationQuebec City, Canada
ARIS Log Number138417
AbstractFour experiments were conducted to examine effects of individual terpenes on alfalfa pellet intake by lambs. Forty-five lambs (nine lambs/treatment) were individually fed alfalfa pellets sprayed with either camphene, myrcene, caryophyllene oxide, or beta-pinene at one of five concentrations in an ethanol carrier. Treatments (0, .5, 1, 2, and 10X) were multiples of the concentration (X) of a specific terpene on the leaf surface of Flourensia cernua. Terpenes were applied to alfalfa pellets (.64 kg.lamb-1.d-1, DM basis) and consumption was measured during a 20-minute interval for 5 d. Lambs were adapted to handling and individual pen feeding for 10 d and were maintained and fed alfalfa pellets in one group (except during 20-minute 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-minute interval. Camphene and caryophyllene oxide may be involved in the differential herbivory of individual tarbush plants by livestock.