Female piglets (LargeWhite x Landrace crossbred gilts-DB25-DanBred),born and housed at the same farm from birth onwards,were weighed at birth and followed until their third farrowing. All
gilts were born to sows with parity orders(PO)ranging from 1 to 7 and were individually weighed within 12 h of birth on a digital balance ( 10 g of precision).A total of 1495 female piglets were recruited from 240 litters and data concerning their survival,growth performance and retention until the time of selection were reported previously