Effect of pre-slaughter transport stress on the water holding capacity and water distribution of pork during postmortem aging, (A) drip loss, (B) cooking loss, (C) LF-NMR relaxation time spectra, (D) T21 and T22 relaxation times, and (E) P21 and P22. Different letters (A-C) indicate a significant difference among aging time points at the same treatment (p < 0.05); Different letters (a, b) indicate a significant difference between two treatments at the same aging time (p < 0.05). TR: three-hour transport followed by three-hour resting treatment; T: three-hour transport treatment.