title: Epidemiological and genetical studies in Norwegian pig herds. II. Overall disease incidence and seasonal variation.
abstract: The present epidemiological study is based on individual health records from 1984 to 1986 in 70 pig herds in the south-eastern part of Norway. For most of the recorded diseases, the incidence rate was less than 1% per farrowing. The majority of disease recordings concerned 6 frequently-occurring conditions; the MMA-syndrome, mastitis, metritis, neonatal diarhoea, arthritis and scrotal hernia. A seasonal effect on the incidence rate was shown for several diseases. The incidence rate for the MMA-syndrome of about 17.5% seems to be of the highest recorded for this disease in a population study.
authors.affiliation: Department of Animal Genetics, Norwegian College of Veterinary Medicine, Oslo.
authors.forename: F
authors.initials: F
authors.lastname: Lingaas
authors.forename: K
authors.initials: K
authors.lastname: Rønningen
mesh_terms: D000818:Animals; D015994:Incidence; D009664:Norway / Q000453:epidemiology; D012621:Seasons; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*