表：全国样本饲料企业玉米周度库存（单位：天）地区本周上周去年同期周环比较去年同比东北20.3820.7521.50-1.78%-5.21%华北22.5120.5923.159.32%-2.76%华中39.0040.3334-3.30%14.71%华南30.4029.8029.202.01%4.11%西南33.1533.0833.870.21%-2.13%华东