An outbreak of lymphosarcoma in merino sheep in the South Western Cape.
Ten per cent of a flock of 481 Merino sheep died from suspected lymphosarcoma in the Caledon district, during a period of one year. In 9 sheep the diagnosis was confirmed by histopathological examination of the tumours. All the sheep and the cattle on the farm were tested for enzootic bovine leukosis using a Bovine Leukemia Glycoprotein Immunodiffusion kit. At the first test 20.5% of the sheep had antibodies to enzootic bovine leukosis. A control programme resulted in a drop in infection rate (3%) within 17 months.
Green
J R
JR
Regional Veterinary Laboratory, Stellenbosch, Republic of South Africa.
Herbst
I A
IA
Schneider
D J
DJ
D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D004196:Disease Outbreaks / Q000662:veterinary*; D007938:Leukemia / Q000453:epidemiology / Q000662:veterinary*; D001909:Leukemia Virus, Bovine / Q000276:immunology; D008228:Lymphoma, Non-Hodgkin / Q000453:epidemiology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*
D000914:Antibodies, Viral