Effect of maternal supplementation with HTX on the concentration of neurotransmitters in the amygdala (A), hippocampus (B), and prefrontal cortex (C) of 100-day old fetuses and 1-month- and 6-month-old pigs. Values in bars (mean ± SE, ng/g tissue) represent noradrenaline (NA), dopamine (DA), 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), serotonin (5-HT), and 5-hydroxyindole-3-acetic acid (5-HIAA). Light bars represent results from the control groups, and dark bars represent results from individuals whose mothers were treated with HTX. Asterisks indicate significant differences between the control group and the HTX group for the respective ages (*** p < 0.001, ** p < 0.01, * p < 0.05).