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. 2021 Jan 4;10(1):84. doi: 10.3390/foods10010084

Figure 7.

Figure 7

The slopes of correlations between the noradrenaline (NA) content of urine obtained just after slaughter and the pH of the Longissimus lumborum measured 24 h postmortem depended on the slaughter method. Pigs had been slaughtered either following mixing and transport to the abattoir the day before slaughter (light-gray symbols; pH = 5.02 + 0.00001 × NA; r = 0.92; p = 0.001) or without mixing, immediately following transport (dark-gray symbols; pH = 5.37 + 0.000003 × NA; r = 0.57; p = 0.14). The slopes differ p = 0.004 (ANCOVA on pH; NA content × slaughter method: p = 0.02). Data from [120] and adapted from [61], with permission from INRAE, 2020. Urinary noradrenaline reflects the amount of noradrenaline secreted into the blood over several tens of minutes preceding the sample collection [122].