Table 1 Genealogical parameters for PDA positive cases, reference population and total of the Stabyhoun population

N

46

7008

14,955

F mean

0.315

0.314

0.268

F max

0.360

0.389

0.466

Proportion F > 0.1

1.0

1.0

0.951

Founders

–

14

38

Effective # founders

–

6.5

–

# males

23

3424

7387

# sires

–

403

503

% of males that sire

–

11.8

6.8

Max. offspring per sire

127

392

# females

23

3541

7568

# dams

–

787

1139

% of females that sire

–

22.2

15.1

Max offspring per dam

52

78