Two cases of organophosphate toxicity were diagnosed at the University of Arkansas Poultry Science Department poultry research farm in the Spring of 2002. In both cases the birds were being treated with the organophosphate RaVap® for Northern Fowl Mites (Ornithonyssus sylvarium) infestations. A total of 61 birds died and 13 were treated successfully with atropine sulphate.
Hubbard, Robert; England, Judith; and Clark, E. Dustan
"Organophosphate toxicosis in chickens: A case report,"
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences. University of Arkansas System Division of Agriculture. 3:40-44.
Available at: https://scholarworks.uark.edu/discoverymag/vol3/iss1/10