Trait

Vulva lesion

SE

Number born alive

−0.062

0.247

Litter birth weight, kg

0.054

0.715

Number weaned

−0.359

0.225

Litter weaning weight, kg

−2.71

2.33

Piglet survival,%

−4.24*

1.82

Wean-to-conception interval, days

−0.258

0.270

Average daily lactation feed intake, kg

−0.095

0.241