Heatmaps showing selected significantly differentially expressed genes between P0, P7, and P15, categorized into four groups based on top GO-BP terms as (A) Extracellular matrix (ECM) genes, (B) Vascular genes, (C) Reactive oxygen species (ROS) responsive genes, and (D) Neuronal signaling genes. Significant differentially expressed genes were obtained using a fold change cutoff of 2 and adjusted p-value≤0.05, in n=3 pigs per stage.