开源证券给予海大集团买入评级，公司信息更新报告：饲料主业快速增长，海外市场表现亮眼

Group 1 - The core viewpoint of the report is that Haida Group (002311.SZ) is rated as a "buy" due to strong performance indicators [2] - The company achieved record-high feed sales, indicating robust demand and effective market strategies [2] - The expansion into overseas markets is accelerating, contributing positively to the company's growth prospects [2] Group 2 - The recovery in pig prices is expected to enhance profitability in the breeding business, providing a favorable outlook for the company's financial performance [2] - The seedling and animal health business is progressing steadily, indicating diversification and stability in revenue streams [2]