Livestock industry margins were mostly lower last week as rising input costs crimped the profitability outlook. Declines were greatest for feedlot placements, where margins fell over $50/head due to higher feeder cattle costs. Beef packer margins saw the next greatest declines with profits dropping $35/head and hitting their lowest level since WPI started estimating packer margins in 2010. The decline in beef packer margins came amid last week’s $5-8/cwt rally in fed cattle prices that was partly offset by a $5 gain in beef values. The rally in fed cattle prices helped push feedlot closeout margins sharply higher, however, and to near five-year record highs.  The pork sector saw packer margins decrease slightly on weaker pork val...