Depletion of DDT from Commercial Layers ,

Abstract

INTRODUCTIONTHE use of DDT and other pesticides to control flies, insects, etc., in poultry houses is a common practice. In addition, DDT and other pesticides are recommended for use in feed grain production (U.S.D.A., 1965). Unless the most careful application of these chemicals is accomplished, some will inadvertently get into the feed and/or water, and will result in a residual buildup in the eggs and meat. Various workers (Naber and Ware, 1961; Liska, et al., 1964; Stadelman et al., 1965) have reported residues of chlorinated insecticides in tissues and eggs of chickens exposed to these insecticides.Recent attention focused on DDT residues in eggs has resulted in condemnation of several lots of eggs by government agencies in the midwest and other areas of the U.S. Though pesticide residues in meat and eggs may be a potential human health hazard, no tolerance level has as yet been set by the …