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PRRS: effect on herd performance after initial infection and risk analysis
J Brouwer1, K Frankena, M F de Jong
1Agricultural University, Department Animal Husbandry, Wageningen, The Netherlands.
The Veterinary Quarterly
|July 1, 1994
Summary
Porcine Reproductive and Respiratory Syndrome (PRRS) severely impacted Dutch pig farms for 4-6 months, causing significant economic losses. No major risk factors were identified to mitigate PRRS
Area of Science:
- Veterinary Science
- Animal Husbandry
- Epidemiology
Background:
- The Dutch pig industry faced a significant challenge with the emergence of Porcine Reproductive and Respiratory Syndrome (PRRS) in early 1991.
- PRRS is a disease known to affect swine health and productivity.
Purpose of the Study:
- To investigate the impact of PRRS on pig productivity using data from affected herds.
- To evaluate the relationship between PRRS outbreaks and various farm and management factors.
Main Methods:
- Analysis of data from 91 Dutch pig herds testing positive for PRRS.
- Utilized the CBK management information system for farm data.
- Conducted an economic evaluation based on sow productivity and replacement rates.
Main Results:
- Herd performance was severely affected for 4-6 months post-PRRS outbreak.
- Economic losses averaged Hfl. 215 per sow per year.
- Decreased piglets per litter, prolonged farrowing intervals, and higher sow replacement rates contributed to losses.
Conclusions:
- PRRS significantly reduced productivity and caused substantial economic losses in the Dutch pig industry.
- No specific farm or management factors were identified as major contributors to mitigating PRRS' negative effects on key performance indicators.