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

What is the "common mucosal immune system"?

That the mucosal surfaces located in certain areas of the organism provide better immunity
That the immune system of all animals from the same species has common elements
That if an antigen comes into contact with a specific mucosal surface, an immune response is given to mucosal surfaces from other distant areas

See a clue in the article The immune system and the immunity in swine: general features

Questions

29-Mar-2017 Comparing females and barrows in the fattening unit, the expected results are: 39% correct

22-Mar-2017 The leading value destination for U.S. pork exports in 2016 was: 32% correct

15-Mar-2017 A commercial vaccine based on a specific App serotype isolated in Europe ¿would it confer protection against the same serotype isolated in Asia? 38% correct

08-Mar-2017 The three main destinations for European pork exports in 2016 were, in this order: 36% correct

Random questions

13-May-2013 The PRRSV in Germany 33% correct

12-Sep-2019 When included into the feed, which ingredient has a greater effect by reducing N ₂ O emissions from the resulting slurry? 33% correct

20-Jul-2022 What is the predominant type of livestock in Spain according to livestock unit in 2020? 73% correct

23-Nov-2017 How do the metabolizable energy (ME) and standard ileal digestible (SID) lysine requirements increase, comparing day 104 of gestation to the lactation peak of the sow? 37% correct

Easy questions

28-Jul-2021 What is the relationship between a piglet's energy reserves at birth and its energy requirements? 75% correct

22-Jan-2025 Which necrospy finding is characteristic of hemorrhagic enteritis? 79% correct

11-Nov-2020 Which procedure would you NOT find in the McREBEL^TM PRRS program? 71% correct

29-Mar-2023 What factors influence the ultimate effect of stress on the immune system? 85% correct

Difficult questions

11-Feb-2014 With respect to Haemophilus parasuis: 28% correct

31-Jan-2012 A boar can produce: 27% correct

04-Jul-2019 In the USA, the PRRS virus causes direct annual losses of: 29% correct

07-Jan-2015 Why is the piglet's FCR almost 1 shorty after weaning? 28% correct