![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
Abstract
A survey of the prevalence of pneumonia, ascariasis, mange, oesophagogastric ulcers and porcine intestinal adenomatosis was carried out during 1986–90 on 2792 baconer pigs from 46 herds located in Canterbury, North Otago and the southern part of the North Island of New Zealand. Enzootic pneumonia had an overall prevalence of 45%, ascariasis 13% and clinical mange 13%. Oesophagogastric ulceration was a problem in certain herds only, whilst porcine intestinal adenomatosis and associated ileal lesions had a very low prevalence (7%). Examination of 534 snouts for atrophic rhinitis revealed a prevalence of 31%, but most of ihe lesions recorded were very mild.