Figure 2

Principal component analysis of all body weight traits reveals two distinct groups. PCA loading plot of principal components PC1 and PC2 (Supplement Figure 2) for body weight traits form day 1 to day 7 p.i. shows two distinct groups. The variation of body weight loss at day 3 to day 7 (ID 13007 to ID 13011) are mainly represented by factor 1. On the other hand, variation of body weight loss at day 1 (ID 13005) and 2 (ID 13006) are most likely explained by factor 2.