饲料板块12月9日跌1.65%，路斯股份领跌，主力资金净流出4530.16万元

Group 1 - The feed sector experienced a decline of 1.65% on December 9, with Lu's shares leading the drop [1] - The Shanghai Composite Index closed at 3909.52, down 0.37%, while the Shenzhen Component Index closed at 13277.36, down 0.39% [1] - A detailed table of individual stock performance in the feed sector is provided [1] Group 2 - The feed sector saw a net outflow of main funds amounting to 45.3016 million yuan, with retail funds showing a net inflow of 173 million yuan [2] - Speculative funds experienced a net outflow of 128 million yuan [2] - A detailed table of fund flow for individual stocks in the feed sector is included [2]