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Table 2 Number of positive/examined samples per farm visit and at slaughter with mean OD values of antibodies in male and female turkeys on farms A, B and C

From: PCR and serology confirm the infection of turkey hens and their resilience to histomonosis in mixed flocks following high mortalities in toms

  Farm Sex of birds Dust Swabs ELISA Mean OD values (cut-off = 0.36)
First farm visit A a ×c 3/30 21/30 0.95
b 4/4 0/30 17/30 0.54
B 4/4 14/30 10/30 0.42
4/4 0/30 1/30 0.2
C × 26/30 2/30 0.19
4/4 0/30 1/30 0.22
Second farm visit A × × × na
4/4 0/30 30/30 0.61
B 4/4 0/30 12/30 0.53
3/4 1/30 4/30 0.28
C 4/4 13/30 15/30 0.48
4/4 1/30 4/30 0.26
Third farm visit A × × × na
4/4 0/30 30/30 0.89
B × × × na
4/4 0/30 14/30 0.46
C × × × na
4/4 1/30 6/30 0.34
Slaughter A × × × na
× × × na
B × × × na
× × 29/30 1.46
C × × × na
× × 26/30 1.34
  1. aMale birds
  2. bFemale birds
  3. cBirds not available for sampling due to high mortalities/culling
  4. Abbreviations: na, not applicable; OD, optical density