Residues of Rabon in Tissues and Egg Yolks of Poultry1

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Dosages of 94, 188, 376, 752. and 1504mg of active Rahon® (2-chloro-l- (2.4,5- trichlorophenyl) vinyl dimethyl phosphate), per kg of body weight were fed to Fayoumi hens. Residues of the insecticide were found in the (at of all treated birds. Not until a level of 376 mg/kg was fed were residues present in liver, leg, or breast. Sixty % of the birds receiving 752 mg/kg died during the experiment, and all birds receiving 1504 mg/kg died within 7 days of the initiation of the treatment.

In a 2nd experiment, Rabon was fed at levels of 25, 50,100, and 200 mg/kg to Comet pullets. Egg yolks, fat, liver, leg, and breast were analyzed. Residues of Rabon were found in the fat of all treated birds 24 hours posttreatment. Analyses of tissues of birds slaughtered 7 and 14 days posttreatment showed no Rabon in the fat. In yolks, residues appeared 2 days after initiation of treatment and disappeared 5 days after last day of treatment. At the 25 mg/kg level some yolks had small residues, but the majority had only trace amounts or no detectable residues.

Document Type: Research Article

Publication date: August 1, 1970

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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