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Each week a new question about swine with the possibility of answering questions from previous weeks.

What does it mean that a disease spreads like an oil stain?

The disease appears simultaneously in many distant locations due to airborne transmission over long distances
The disease remains confined to a single location for a long period and then suddenly jumps to a completely unrelated region
The disease spreads progressively from an initial focus to neighboring areas in a continuous, radial, and gradual manner

Questions

13-May-2026 What is the role of tryptophan? 62% correct

06-May-2026 Canada recently approved PRRS-resistant pigs for what purpose? 70% correct

29-Apr-2026 How large is 333's global community for the swine industry? 63% correct

22-Apr-2026 In the UK, what was the key driver of pig meat production gains in 2025? 64% correct

Random questions

15-Feb-2023 Which is NOT one of the upcoming events on the 333 calendar for this 2023? 62% correct

19-Aug-2021 What year was the use of processed animal protein for swine banned in the EU? 52% correct

21-Dec-2017 What is the cause of thrombocytopaenic purpura? 37% correct

09-Dec-2020 Is there any advantage for newly weaned piglets to have more trough space? 75% correct

Easy questions

12-Oct-2022 What are some examples of eubiotics? 73% correct

23-Dec-2020 What relationship exists between the sows' acceptance of contact by the farmer and the farm performance? 93% correct

10-Sep-2025 What is today's dominant strain of PCV2? 78% correct

09-Jul-2025 How does dietary fiber influence sow behavior? 90% correct

Difficult questions

17-Oct-2018 For how many days the faeces of pigs infected with the ASF virus remain infectious at a temperature of 4ºC? 29% correct

07-Sep-2016 The use of plastic socks for collecting faeces samples and for detecting the optimum time for treatment... 29% correct

30-May-2019 A possible use of probiotics in sows is 27% correct

30-Sep-2020 Pigs that consume a dry, meal diet compared to pelleted feed, take... 27% correct