Acute endosulfan poisoning in cattle.

Endosulfan poisoning was observed in cattle where the owner applied the insecticide topically as ectoparasitic control. Two of 11 cattle died in 2 d with rapid and difficult breathing, foamy exudates in the mouth, tremors, exophthalmos and coma. At necropsy, hemorrhages were on the serosal membranes of the visceral organs and lungs, and there was severe edema and emphysema in the lungs. The levels of endosulfan in the liver, kidney, lungs and muscle were 13.1, 4.0, 1.6 and 0.8 ppm, respectively.