Congenital hydranencephaly and cerebellar hypoplasia in calves
Greene, H.J.
Journal of the American Veterinary Medical Association 173(8): 1008-1010
1978
ISSN/ISBN: 0003-1488 PMID: 721674 Document Number: 138315
Hydranencephaly with marked cerebellar hypoplasia was diagnosed in four calves in a 95-cow herd in British Columbia, Canada. Clinically, these cases were similar to eight earlier cases on the same farm. Affected calves were born weak, had slightly dome foreheads, and were incoordinated and thus unable to suck. At least two had no eye preservation reflex. The condition was reported to have been common in the Fraser River Valley during the 1973/1974 calving season. Serological investigations of the dams were negative for bluetongue and infectious bovine rhinotracheitis. An environmental rather than inherited cause was postulated.