Bovine arsenic toxicosis.
A ranch in central South Dakota had a number of dead calves because of arsenic poisoning. The clinical picture included diarrhea, central nervous system signs, and death. Gross necropsy findings included adequate body fat, stomachs full of normal-appearing ingesta, and large amounts of greenish brown watery fluid in the intestine and colon. Microscopically there was severe lymphoid tissue necrosis in the mesenteric lymph nodes and gut-associated lymphoid tissue. Chemical analysis of kidneys showed no significant amounts of lead; however, kidney arsenic concentrations were 25 to 44 ppm. The source was a small pile of Paris Green (common name for cupric acetoarsenite) found in an old dump site in the pasture.
Department of Veterinary Science, South Dakota State University, Brookings, SD 57007, USA.
Regg
R
Neiger
Nicole
N
Nelson
Dale
D
Miskimins
Jim
J
Caster
Larry
L
Caster
D000818:Animals; D020261:Arsenic Poisoning / Q000209:etiology / Q000662:veterinary*; D018053:Arsenites / Q000506:poisoning*; D002417:Cattle; D002418:Cattle Diseases / Q000139:chemically induced* / Q000378:metabolism / Q000473:pathology; D002493:Central Nervous System Diseases / Q000139:chemically induced / Q000473:pathology / Q000662:veterinary; D003967:Diarrhea / Q000139:chemically induced / Q000473:pathology / Q000662:veterinary; D005260:Female; D007668:Kidney / Q000737:chemistry
D018053:Arsenites; C037577:Paris green