Female piglets (Large White x Landrace crossbred gilts-DB 25-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).