Ruminant MBM prices traded in mixed direction today, lower on mixed species material FOB River and Panhandle and higher on pure beef material out of Illinois and into the AL/GA market. For the month, prices are at 90 percent of soybean meal, which is still a very good value when comparing protein content. Prices are 15 percent over the prior three-year average, but tight porcine supplies and good demand for the pure beef material may keep…