Cattle slaughter ended last week at an estimated 500,000 head, down 25 percent relative to year ago levels and up 10 percent compared to the week prior. Slaughter over the next six weeks is forecast at an average of 584,200 head, down 10 percent compared to year ago levels and up 17 percent compared to the prior six week average. The increased production in addition to high, relative prices to soybean meal adds risk for…