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CONTAMINANT LEVELS IN ANIMAL FEEDS USED FOR TOXICITY STUDIES
Citation:
Coleman, W. AND R. Tardiff. CONTAMINANT LEVELS IN ANIMAL FEEDS USED FOR TOXICITY STUDIES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-79/124 (NTIS PB81201329).
Description:
Samples of commercial feeds for laboratory rats, guinea pigs, cats, monkeys rabbits, and hamsters were collected and analyzed qualitatively and quantitatively for selected antibiotics, trace metals, pesticides (organophosphates and chlorinated hydrocarbons), natural agents, and polychlorinated biphenyls (PCBs). The results indicated that antibiotics, parathion, diazinon, aldrin, and the aflatoxins were not detected, whereas, metals, chlorinated hydrocarbon pesticides (except aldrin), and PCBs were continually present. Malathion and estrogen were found occasionally.