title: Cerebral nematodiasis in captive nutria.
abstract: Of 35 nutria (Myocaster coypus) at a city zoo, 20 died or were killed because of a progressive central nervous system disease. On the basis of histopathologic findings, a diagnosis of cerebral nematodiasis complicated by nosematosis was made. The only significant management change prior to illness was the feeding of poplar tree branches from a lowland area inhabited by skunks and raccoons. Neurologic disturbances gradually ceased within 2 months after control measures were initiated and the practice of provided poplar branches as a source of roughage was discontinued.
mesh_terms: D000818:Animals; D000836:Animals, Zoo; D001921:Brain / Q000473:pathology; D001927:Brain Diseases / Q000473:pathology / Q000662:veterinary*; D009349:Nematode Infections / Q000473:pathology / Q000662:veterinary*; D011528:Protozoan Infections / Q000473:pathology; D011529:Protozoan Infections, Animal; D012376:Rodent Diseases / Q000473:pathology; D012377:Rodentia