Fig. 1

Piglet cumulative probability to change body weight (BW) class between birth (BiW) and weaning a, birth and finisher b, and weaning (WW) and finisher (c). Within batch, BW classes were created using percentiles (25%) resulting in 4 groups. Class 1 represents the lightest pig, class 4 the heaviest. Data is represented in probability ± SE. Different colours represent BW class, with respectively class 1 , class 2 , class 3 , and class 4 . The comparison is made between pigs of different BW classes (i.e. BiW or WW class) estimating their probability to end up in one of the final BW classes (i.e. weaning or finisher). Pigs were weighed within 12 h after birth (d 0), weaning (d 27.7, SD = 1.07), and finisher (d 98.8, SD = 0.937). ^a,b,c,d Within BW class (i.e. weaning, finisher) numbers with different superscripts differ significantly (P < 0.05)