Effects of individual terpenes on intake by lambs

TitleEffects of individual terpenes on intake by lambs
Publication TypeConference Paper
Year of Publication2002
AuthorsEstell R.E., Fredrickson E.L., Anderson D.M., Havstad K, Remmenga M.D.
Conference NameSociety for Range Management, New Mexico Section Winter Meeting
Date PublishedJanuary 8-10, 20
Conference LocationLas Cruces, NM
ARIS Log Number138422
Abstract

Effects of individual terpenes on alfalfa pellet intake by lambs were examined. Forty-five lambs were individually fed alfalfa pellets treated with either camphene, myrcene, caryophyllene oxide, or beta-pinene at one of five concentrations. Treatments (0, .5, 1, 2, and 10X) were multiples of the concentration (X) of a specific terpene on Flourensia cernua leaves. Terpenes were applied to alfalfa pellets (.64 kg DM/lamb) and intake during a 20-minute interval was measured for 5 days. Lambs were adapted to handling and individual pen feeding for 10 d and were group-fed alfalfa pellets (4.7% of BW). Camphene and caryophyllene oxide tended to decrease intake (linear contrasts were P = .0651 and P = .0504, respectively), while myrcene and beta-pinene had no effect on alfalfa pellet consumption during the 20-minute interval. Camphene and caryophyllene oxide may be involved in the differential herbivory of individual tarbush plants by livestock.