*Feedlot inventories remain steady.    *This is not turning out to be a good year to grow corn.   *Congressman Trent Kelly of Mississippi has introduced the Farmer Assistance and Revenue Mitigation act. *What’s the status of cow herd rebuilding?   *Several agricultural groups are expressing concerns over the federal government’s new dietary guidelines.   *New traceability rules for cattle go into effect next week.   *A very important deadline is coming up for most farmers in America.   *Health problems in older horses can be much different from those in younger horses.