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Cement Kiln Dust and Carboxylin as Feed Additives for Swine¹

University of Georgia, College of Agriculture, Coastal Plain Station, Tifton 31794

Abstract

Two trials were conducted to evaluate cement kiln dust as a dietary additive for growing-finishing swine. The first trial, which also included comparisons with carboxylin, consisted of 84 pigs housed in pens of six pigs each and fed control, 2% cement dust or .4% carboxylin diets with either 13 or 16% protein or a 1% cement dust diet with 16% protein. The second trial involved 24 individually housed pigs fed either a control, 1% or 2% cement dust diet to further evaluate cement dust and the effect of level of cement dust in swine diets. Pigs fed 2% cement dust gained faster (P<.05) and required less feed per unit of gain (P<.05) than those fed carboxylin. Pigs fed carboxylin tended (P<.10) to have greater values for percentage ham and percentage lean cuts than those fed control diets. In trial 2, pigs fed 1% cement dust had more (P<.05) backfat than those fed 2% cement dust diets. There was a trend for pigs fed cement dust to require less feed per unit of weight gain than those fed control diets during the first half of both trials.

¹ Supported by State and Hatch Funds allocated to the Georgia Agri. Exp. Sta.