Livestock feed price ratios forecast for December 2013 already show dramatic changes over the past two years in terms of livestock profitability.Feed OutlookIt is a new year with bigger crops and moderating to significantly lower prices that should provide a much needed break for the economic pressures that the livestock industry has been facing. Corn prices are down and fell a full 40 percent for the year in a drop on the last day of trading in 2013. It was the largest decline of any of the 24 commodities on the S&P commodities index based on the record 13.98 billion bushel U.S. harvest. This will likely spur consumption but still lead to expanding stocks by the end of the year, perhaps even into 2014 if yields stay on trend. China's r...