Cement Kiln Dust in Finishing Lamb Diets

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Abstract
Five groups of 10 feeder lambs each were fed completely pelleted diets containing 53% sun-cured alfalfa, 37% ground corn, 5% molasses and 3.5% of five different cement kiln dusts. A sixth group was fed the same basal diet that contained 3.5% ground limestone. Lambs were fed for 49 days and slaughtered at average weights of about 50 kilograms. None of the differences in weight gains among groups was statistically significant. Cement kiln dusts contain a variety of trace metals, but only Pb concentration was considered to be a possible hazard. Analyses of bones, however, indicated no significant difference in Pb between the control group and the group fed the dust containing the highest Pb concentration. Se content of the diets was above the suggested requirement for sheep. Copyright © 1979. American Society of Animal Science . Copyright 1979 by American Society of Animal Science.