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Summary
A 1974 UK survey found atrophic rhinitis in 44.7% of pigs, with 17.5% showing severe cases. This suggests a significant increase in pig snout disease since 1956/57, necessitating urgent monitoring.
Area of Science:
- Veterinary Pathology
- Swine Health
- Epidemiology
Background:
- Atrophic rhinitis is a significant disease affecting pig production.
- Previous surveys in the UK indicated a lower prevalence of the disease.
- Understanding current incidence is crucial for disease management.
Purpose of the Study:
- To assess the prevalence and severity of atrophic rhinitis in pigs in England and Scotland.
- To identify associated lesions and risk factors.
- To compare current findings with historical data.
Main Methods:
- Examination of 2701 pig snouts from five abattoirs between March and July 1974.
- Lesion grading from 1 (mild) to 5 (severe) for atrophic rhinitis.
- Inspection for foreign bodies, dental issues, and temporomandibular joint conditions.
Main Results:
- Suspicious atrophic rhinitis lesions were observed in 75.7% of pigs.
- Obvious turbinate atrophy (grades 2-5) occurred in 44.7% of the sample.
- Severe atrophy (grades 3-5) was present in 17.5% of pigs; 5.3% had foreign bodies and gingivitis.
Conclusions:
- The incidence of atrophic rhinitis in pigs appears to have increased substantially since 1956/57.
- Associated dental and temporomandibular joint lesions were frequently observed.
- A disease-monitoring service for atrophic rhinitis is urgently required in the UK.