Demonstration of a herpesvirus from piglets with lesions of Aujeszky's disease in New Zealand

Extract

Sir, — Four suckling piglets have been examined at this laboratory from a Taranaki herd in which sudden death, chorea and convulsions were the clinical features.     

A request for sheep with testicular feminization

Extract

Sir,—I should like to make a request to interested veterinarians for live specimens of the rare condition in sheep — testicular feminization.     

Prevalence and pathogenicity of anoplocephala perfoliata in a horse population in South Auckland

A survey of the prevalence of A noplocephala perfoliata in 65 horses is described. An overall prevalence rate of 82% was found for A. perfoliata infection and 77% of infected horses exhibited ulcerative pathology in the ileo-caecal region directly associated with this parasite. Anoplocephela magna and Paranoplocephala mamillana were not recovered.     

Use of a DNA probe in the diagnosis of enzootic bovine leukemia

The authors describe the possibility of adopting a DNA probe in the detection of Bovine Leukemia Virus (BLV), using the molecular hybridization technique. The study was carried out on 18 seropositive Friesian cows taken from different stock farms during the persistent lymphocytosis phase. The presence of a possible BLV molecular variant was highlighted in one stock farm.