Cattle slaughter finished last week at a 524,000 head, down 11 percent from a year ago and down 6 percent relative to the year prior. Slaughter is forecast to move higher over the next six weeks. This week, slaughter is projected out at 625,000 head, up 20 percent from the week prior. Over the next six weeks, slaughter is forecast at an average of 622,500 head, up an average of 28 of a percent from the prior…