Reproductive trait

Lactation average daily feed intake, kg

Previous lactation

Concurrent lactation

ADFI

ADFI

ADFI

Number born alive

0.691*

Litter birth weight, kg

0.996*

Number weaned

0.339

2.98*

−0.162*

Litter weaning weight, kg

0.611

8.64*

Piglet survival, %

2.21

25.2*

−1.51*

Wean-to-conception interval, days

0.696

−7.63*

0.578*

Farrowing rate, %

0.009