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. 1991 Mar 1;32(1):89–96. doi: 10.1186/BF03547000

Epidemiological and Genetical Studies in Norwegian Pig Herds

II. Overall Disease Incidence and Seasonal Variation

Epidemiologiske og genetiske studier av sjukdommer i norske svinebesetninger. II. Sjukdomsinsidens og sesongvariasjon

Frode Lingaas 1,✉, Knut Rønningen 1
PMCID: PMC8127902  PMID: 1950855

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.

Keywords: MMA-syndrome, mastitis, metritis, neonatal diarrhoea, arthritis, scrotal hernia, seasonal effect, age effect, swine, disease recordings

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