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SELENIUM FERTILIZATION TO PREVENT SELENIUM DEFICIENCY
November 2004
R.L. Hathaway, G.J. Pirelli, W.D. Mosher, J.E. Oldfield and G.D. Pulsipher
Department of Animal Sciences, Oregon State University
Parts of Oregon are known to have soils that are deficient in the essential micronutrient, selenium, and this causes symptoms of selenium deficiency in livestock grazing or fed crops raised on them. This knowledge was gained through studies of a troublesome myopathy, called “white muscle disease” which annually killed or debilitated large numbers of calves and lambs in Crook, Deschutes and Jefferson counties (Muth, et al., 1958).
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Time of Feeding Can Affect Your Bottom Line
By
T. E. Marshall1, Bruce Lane2, and Grant Phillips3
University of Missouri Extension and Truman State University recently collaborated on a lamb demonstration project to determine the effects of double-shearing, and time of feeding on growth of lambs. In this study 32 feeder lambs were assigned by sex and weight to either daytime (A.M.) or night time (P.M.) feeding groups. Additionally midway into the 100 day trial one-half of the lambs were sheared in each group. This was the second shearing for the latter as all lambs were sheared prior to the start of the experiment (double-shearing). The lambs in the trial were black face lambs, predominantly club-lamb phenotype, and genetically similar (all but six had the same sire). They were from one breeder.
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