受近期禽流感疫情及生猪价格下跌叠加影响,使得饲料养殖需求在短时间内迅速萎缩,饲料厂提货意愿下降,港口走货速度缓慢。截止到2013年4月12日,北方四港玉米库存达350万吨左右,相比之下,北方港口2012年全年平均库存仅为170万吨左右;南方港口库存为60万吨左右,为历年同期的新高。在北方港口库存高位,库容有限的影响下,目前北方港口收购要求相对严格,且贸易商多加大优质粮源的收 Affected by the recent outbreak of bird flu and the drop of pig prices, the demand for feed breeding has rapidly shrunk in a short period of time. The willingness of the feed mill to take delivery of goods has dropped and the port has taken delivery of goods at a slow pace. As of April 12, 2013, the stocks of corn in the northern four ports amounted to about 3.5 million tons, compared with an average of only 1.7 million tons in the northern ports in 2012. The stock in the southern ports was about 600,000 tons, New high over the same period. Under the influence of the high inventory of northern ports and the limited storage capacity, the requirements for the acquisition of ports in the north are relatively stringent and traders have increased the revenue from high-quality grain sources