Table 1.

The description of the 17 analyzed traits of body conformation, feet and leg structure and overall leg action.

		Score
Trait	Description	1	9	Heritability Estimate	Mean (SD)
Body length	Distance from tail to scapulae viewed from side	Short	Long	0.26a 0.29d	4.79 (0.97)
Body depth	Distance from back to sternum viewed from side	Deep	Shallow	0.34d	4.12 (1.22)
Body width	Rump width (Butterfly shape) viewed from rear	Narrow	Wide	0.69a 0.25d	5.38 (1.22)
Top Line	Arch straightness between shoulder and rump viewed from side	Weak	High topped	0.11–0.12d	5.18 (0.80) 0.52 (0.63)e
Hip structure	Hip line and tail setting viewed from side	Level	Steep	0.18d	4.30 (1.75)
Rib shape	Breast width view from the horizontal	More shape	Less shape	0.26d	4.33 (1.59)
Front turned in/out	Front hocks turned inward/outward from each other viewed from front	Turned out	Turned in	0.09a 0.09–0.16b 0.02–0.03c 0.02–0.06d	3.95 (0.71) 1.05 (0.70)e
Front pastern posture	Angle of front foot viewed from side	Weak and soft	Upright	0.38a 0.26–0.35b 0.28d	4.51 (1.61)
Buck knee	Over at the knee of front legs viewed from side	Upright	Severe buck knees	0.36a 0.28b 0.14–0.19c 0.13d	4.65 (1.64)
Front foot size	Front foot size	Large	Small	0.16d	5.28 (0.92)
Front uneven toes	Even and uniform shape of front hooves	Even	Severely uneven	0.01–0.13b 0.00–0.05c 0.09d	2.20 (0.96)
Rear turned in/out	Rear hocks turned inward/outward from each other viewed from rear	Turned out	Turned in	0.16a 0.15–0.22b 0.14–0.17d	4.02 (0.76) 1.01 (0.73)e
Rear pastern posture	Angle of rear foot viewed from side	Weak and soft	Upright	0.12a 0.29–0.32b 0.02–0.06c 0.31d	4.25 (1.33)
Weak rear legs	Angle of rear hocks viewed from side	Weak	Upright	0.10a 0.02–0.10b 0.14d	4.25 (1.33) 0.94 (0.80)e
Rear foot size	Rear foot size	Large	Small	0.23a 0.13d	5.17 (1.02)
Rear uneven toes	Even and uniform shape of rear hooves	Even	Severely uneven	0.48a 0.13–0.19b 0.07–0.18c 0.12d	2.31 (1.05)
Overall leg action	Structural soundness and movement and freedom of other defects	Excellent movement	Most severe/unable to walk	0.06c 0.12d	4.59 (1.84)

^aDutch Landrace and Dutch Yorkshire [13].

^bDanish Landrace and Danish Yorkshire [10].

^cFinish Landrace and Finish Large White [11].

^dCommercial Landrace × Large White [12].

^eAdjusted data by subtracting 5 from the original score and taking the absolute value for each trait in this study.