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Chronic pleuritis in Danish slaughter pig herds
A Cleveland-Nielsen1, E O Nielsen, A K Ersbøll
1Department of Animal Science and Animal Health, The Royal Veterinary and Agricultural University, Grønnegaardsvej 8, DK-1870 Frederiksberg C, Denmark. acln@fdir.dk
Preventive Veterinary Medicine
|September 28, 2002
Summary
Chronic pleuritis (CP) in pigs is linked to herd health, pig density, mingling, and slaughter month. Dry feed and all-in-all-out systems reduce CP risk in pig production.
Area of Science:
- Veterinary Medicine
- Animal Health
- Swine Production
Background:
- Respiratory diseases pose significant challenges in modern, intensified pig production.
- Chronic pleuritis (CP) is a major concern impacting swine health and productivity.
Purpose of the Study:
- To identify and quantify risk factors associated with chronic pleuritis (CP) in Danish pig herds.
- To investigate the influence of herd, management, and environmental factors on CP occurrence.
Main Methods:
- Analysis of post-mortem meat inspection data from 540,104 slaughter pigs across 259 herds.
- Data collection included herd characteristics, owner interviews, and neighborhood factors.
- Statistical analysis using a mixed model accounting for repeated measurements.
Main Results:
- Increased CP prevalence was associated with low herd health status, high pig density (within 5km), mingling of pigs, and month of slaughter.
- Feeding exclusively dry feed and implementing all-in-all-out production systems demonstrated protective effects against CP.
Conclusions:
- Herd health, spatial pig density, mixing practices, and seasonal factors significantly influence chronic pleuritis risk.
- Specific management strategies, including dry feed and all-in-all-out systems, can mitigate CP in swine populations.