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Table 3 Results of pooled faecal samples (1 pooled sample = 3 individual faecal samples) testing for B. hyodysenteriae and other Brachyspira spp. after implementation of the eradication programme (n = 10 farms). Farms with successful eradication are marked in bold

From: Implementation and evaluation of different eradication strategies for Brachyspira hyodysenteriae

  Farm number
1 2 3 4 5 6 7 8 9 10
Type of farma gilt rearing farrow-to-finish sow fattening farrow-to-finish fattening sow sow fattening fattening
Depopulation partial total none total none partial partial partial partial partial
Medication no no yes no yes (only sows) no yes yes no no
B. hyodysenteriae
 Month 6 0/3 0/3 (sows)
0/4 (FP)c
0/3 (sows)
3/3 (FP)
0/4 0/3 (sows)
1/4 (FP)
3/4 0/3 0/3   
 Month 9   0/3
0/4
  0/4 1/1 (FP) 0/10b 2/4 (gilts)
0/3 (sows)
0/3   
 Month 12 0/3 0/3
0/4
  0/4    2/5 (gilts)
0/48 (sows)b
0/2 1/1 1/1
Other Brachyspira spp.
 Month 6 2/3 (murdochii) 2/3 0/3
0/3
0/4 0/9
0/12
0/4 0/3 0/3   
 Month 9   0/3
1/4 (innocens)
  0/4 0/3 1/10b (murdochii) 0/5 (gilts)
0/5 (sows)
0/3   
 Month 12 2/3 (pilosicoli) 0/3
0/4
  0/4    0/3 0/2 0/1 0/1
Clinical signs (diarrhoea) after eradication no no yes no yes yes yes (mild, only in gilts) no yes yes
  1. a Gilt rearing: from 10 weeks until pregnancy testing; sow farm: pigs raised until 10 weeks of age
  2. b Extra samples taken from clinically healthy pigs on known infected farms
  3. c FP fattening pigs