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Table 7 Percentage of pigs with antibodies in serum

From: Porcine ear necrosis in weaned piglets: prevalence and impact on daily weight gain

  Weaning batch  
  1 2a 3a 4 5 6a  Total
Nb of sampled animals (n = 10) (n = 9) (n = 10) (n = 10) (n = 10) (n = 10) (n = 59)
   4 weeks post-weaning (7 week old)
 Influenza subtype Blood samples not taken     
 H1N1     90 100 100 97
 H1N2     40 0 60 33
 H3N2     10 0 60 23
 PCV2 IgG     0 0 0 0
 PCV2 IgM     0 0 0 0
 PRRSv     70 70 70 70
 M. hyopneumoniae     0 0 0 0
   7 weeks post-weaning (10 weeks old)
 Influenza subtype        
 H1N1 100 77 100 100 100 100 96
 H1N2 40 89 70 30 0 0 38
 H3N2 0 0 0 10 10 0 3
 PCV2 IgG 100 56 70 60 40 60 65
 PCV2 IgM 80 67 80 70 50 90 61
 PRRSv 50 44 40 50 70 60 52
 M. hyopneumoniae 50 33 50 50 30 30 40
  1. Serum tested for swine influenza H1N1, H1N2, H3N2, porcine circovirus type 2 (PCV2), porcine reproductive and respiratory syndrome virus (PRRSv) and Mycoplasma hyopneumoniae (M. hyopnemoniae) at 7 and 10 weeks of age (4 and 7 weeks post-weaning, respectively)
  2. Only pigs from weaning batches 4–6 were sampled twice, at 4 and 7 weeks post-weaning
  3. aA mycotoxin detoxifier was added to the feed of weaning batches 2, 3 and 6