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

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