Lower soybean meal prices and port congestion continue to weigh on the feathermeal market. Trading was reported in good volume between $450 – 500 FOB Mid-South today. Trading was lower out of the Carolinas market as well. The nearby soybean meal market is off 5 percent from March 1st  and 14 percent from the high of $465 per ton on January 14th. Mid South feathermeal prices increased steadily since the start of the year, recently topping out at an average of $587.50 on March 3^rd.  The relative price to soybean meal on March 3rd was 140 percent, a fundamental signal for lower prices. Feathermeal prices are down 14 percent over the last week…