01397naa a2200157 a 450000100080000000500110000800800410001910000200006024501060008026000090018652008450019565000100104070000210105070000230107177301450109420886682018-03-06 2001 bl uuuu u00u1 u #d1 aWILLIAMS, C. L. aThe effect of molybdenum, iron and sulphur supplementation on growth rate and copper status of lambs. c2001 aThe objective of this experiment was to assess the effect of molybdenum and iron in the presence of sulphur on the copper status and performance of intensively reared lambs, and to predict the accuracy of this ratio when assessing the effects of molybdenum or iron on copper metabolism. The CP:Pl-Cu ratio confirmed that lambs receiving a high molybdenum supplementation had a lower ratio compared to the other three treatment groups and therefore this method of assessing copper status may be more useful than other current methods. The ratio decreased over the ten-week trial period confirming the theory of Mackenzie et al. (1997) that the ratio is sensitive to dietary copper antagonists. A high molybdenum concentration within the diet may therefore exacerbate the production of thiomolybdates, making copper unavailable to the animal. aSheep1 aMACKENZIE, A. M.1 aILLINGWORTH, D. V. tIn: ANNUAL MEETING OF THE BRITISH SOCIETY OF ANIMAL SCIENCE, 2001, Scarborough, UK. Proceedings... Medlothian: BSAS, 2001. 1 CD ROM. p. 140.