The amount of a peroxisomal 2,4-dienoyl-CoA reductase [(3E)-enoyl-CoA-producing] when measured in blood serum. The trait is OBA_2041263 (level of peroxisomal 2,4-dienoyl-CoA reductase [(3E)-enoyl-CoA-producing] in blood serum). Also known as: blood serum peroxisomal 2,4-dienoyl-CoA reductase [(3E)-enoyl-CoA-producing] amount.