Porcine meat and bone meal (MBM) traded lower today out of the Midwestern markets, down by as much as $22.50 FOB Indiana. Trading in the Carolinas was higher, supported by tighter supplies and strong, widespread demand. The porcine MBM market has been resistant to the downswing in protein values since February. Through today, soybean meal remains the highest price ingredient on a per protein basis when compared to feather meal and ruminant and porcine MBM. Porcine MBM is off 14 cents per unit compared to March where ruminant MBM is down 67 cents per unit. Feathermeal is down 84 cents per unit. The lower prices…