12月1日起：粮价、猪价一夜突变！玉米要暴跌？猪价、牛羊价要全面大涨！农民警惕一个现实问题！

Group 1: Grain Prices - In December, corn prices are expected to experience a significant decline, but the overall market is currently in a weak fluctuation rather than a drastic drop [1][2] - State-owned enterprises like COFCO and China Grain Reserves Corporation are likely to initiate policy-based storage and purchasing for high-quality corn in Northeast China [2] - The increase in grassroots purchasing entities will shift farmers' selling sentiments positively, ensuring stable and slightly rising corn prices [2] Group 2: Livestock Prices - December is anticipated to see a comprehensive increase in pig, cattle, and sheep prices due to rising consumer demand for meat as winter approaches [3] - The main purchasing price for live pigs has reached over 12 yuan per kilogram, with some areas approaching 13 yuan per kilogram [3] - The demand for beef and mutton is also increasing as the winter season begins, leading to a continuous rise in prices for these meats [3] Group 3: Climate Impact - The formation of La Niña is expected to cause significant temperature fluctuations, increasing the risk of livestock diseases and grain spoilage [4] - Farmers are advised to take preventive measures, such as vaccinating livestock and properly storing grains, to mitigate these risks [5] - The overall agricultural sector is encouraged to adapt to these climatic changes to ensure continued production and income growth [5]