Residues of Endosulfan in Meat and Milk of Cattle Fed Treated Forages
Authors: BECK, E. W.; JOHNSON, J. C.; WOODHAM, D. W.; LEUCK, D. B.; DAWSEY, L. H.; ROBBlNS, J. E.; BOWMAN, M. C.
Source: Journal of Economic Entomology, Volume 59, Number 6, December 1966 , pp. 1444-1450(7)
Publisher: Entomological Society of America
Abstract:When endosulfan was applied at rates of 4, 8, and 16 oz/acre to forage crops, residues persisted through 71 days grazed pastures of Coastal Bermudagrass. Fat of beef animals grazed 31-36 days on the treated pastures, beginning 7 days after treatment, were free of detectable residues. Endosulfan persisted in grass silage through 78 days. An unknown product of endosulfan which increased with time was found in silage and was later identified as endosulfan sulfate. Milk from dairy cows fed silage averaging 0.41, 0.70 and 2.35 ppm endosulfan for 21 days was free of detectable residues. Two beef animals ingesting endosulfan at the rate of 5.0 and 2.5 mg per kg per day showed symptoms of toxicity after 2 and 13 days, respectively. Detectable residues were found in fat from animals ingesting endosulfan at the rate of 1.10 mg per kg per day, but there were no signs of toxicity to the animals.
Document Type: Research Article
Publication date: December 1, 1966
- 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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