The 12th European PRRS Research Awards
COMBAT - Updated biosecurity tool with 4 features
The Guilty Gilt Guide
PRRS Ctrl 2.0
12th Asian PRRSpective 2018 · Building together a strong base for PRRS control
The control of porcine reproductive and respiratory syndrome virus (PRRSV) hinges on monitoring and surveillance.
How to overcome challenges when is comes to behavioural changes. Personal experiences shared by trainer Matthias Dehne, explaining how to keep mentally agile.
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10th Asian PRRSpective 2016 · Learning for the future
“It’s like an invading army in the lung, pigs can die from it within a day of infection”
Background: Processing fluids (PF) and family oral fluids (FOF) are population-based surveillance samples collected from 2- to 5-day-old piglets and due-to-wean piglets, respectively. Although they are described for the surveillance of PRRSV in sows and piglet populations at processing and weaning, there is limited information on their use in commercial herds. This observational study described PRRSV RNA detection over time in PF, FOF, and piglet serum collected from farrowing groups in commercial breeding farms with the objective of achieving robust, practical, and effective PRRSV surveillance protocols. Weekly PF (an aggregate sample of all litters processed in a week from each room), and FOF (a convenience sample attempted from at least 20 individual litters in at least one farrowing room each week) samples were collected from six PRRSV-endemic commercial breeding herds for up to 38 weeks. A total of 561 PF room samples, 2400 individual litter FOF samples, and 600 serum samples (120 pools of 5 samples) were collected during the study period and tested for PRRSV RNA. Data were evaluated for patterns of PRRSV RNA detection by specimen within farms over time.
Results: In particular, the detection of PRRSV was commonly sporadic over time within farms (weeks of PRRSV RNA negative results followed by one or more weeks of positive results); was often non-uniform within farms (negative and positive farrowing rooms at a given point in time); and PF and FOF testing results agreement was 75 and 80%at week and room level, respectively, demonstrating that both sampling methods could complement each other. Non-uniformity in PRRSV detection in rooms sampled within the same week and detection after ≥11 consecutive weeks of PRRSV negative PF and FOF results underline the challenge of consistently detecting the virus.
Conclusions: These results suggest that monitoring protocols for breeding herds attempting PRRSV control or elimination can use both PF and FOF to improve PRRSV detection in suckling pig populations.
Concluding the structured disease control program, this session from Asian PRRSpective 2024 covers the final steps for effective disease management and recovery. Learn how to apply these strategies to drive measurable success in your swine farm operations.