Figure 4

PLS-DA score plots for the comparison of non-volatile polar metabolite profiles of colostrum (day 0; panel A), transient milk (day 3; panel C) and mature milk (day 17; panel D) samples collected from sows in parity 1 (
), parity 2–6 (
) and parity 7 (
). VIP scores derived from the comparison among colostrum samples (day 0) with indicative metabolites accountable for the discrimination and their relative abundances are visualized in panel B.