short questions (swine diseases)

Question 1

rules of restocking/ repopulation in CSF

Answer 1

• minimum 30 days after completion of cleaning and disinfection operations
• open air holdings:
  
  • full repopulation may take place only if none of the sentinel pigs have developed antibodies against the virus (test: 40 days)

Question 2

ASF repopulation after an outbreak

Answer 2

• reintroduction of pigs to infected holdings shall not take place until at least 40 days after the completion of cleaning, disinfecting, and if necessary, disinsectisation operations of the holding

Question 3

regular testing in Aujezky’s disease free large scale holdings

Answer 3

• All boars: every 6 months
• Sows: 20-50% every 6 months
• Representative sample of fattening pigs

Question 4

measures in large scale holdings in case of teschovirus

Answer 4

• all diseased and suspected of being diseased pigs: killed on the spot
• Suspected of being contaminated: observation for 40 days, heat treatment if slaughtered
• 70˚C for 20 minutes, removal of intestinal tract, intact nervous system

Question 5

restocking in case of swine vesicular disease

Answer 5

• 4 weeks after completion of the first full disinfection of the premises
• outdoor pig holdings:
  
  • negative sentinel piglets: examined clinically and sampled for serological testing after 28 days
  • full restocking
• other forms of rearing:
  
  • within a period of 8 days
  • seronegative pigs
  • no pig may leave the holding after a period of 60 days after the arrival of the last pigs
  • clinical and serological examination: 28 days after the arrival of the last piglets