饲料板块12月23日跌0.75%，粤海饲料领跌，主力资金净流出1.83亿元

Group 1 - The feed sector experienced a decline of 0.75% compared to the previous trading day, with Yuehai Feed leading the drop [1] - On the same day, the Shanghai Composite Index closed at 3919.98, up 0.07%, while the Shenzhen Component Index closed at 13368.99, up 0.27% [1] Group 2 - In terms of capital flow, the feed sector saw a net outflow of 183 million yuan from main funds, while retail investors contributed a net inflow of 125 million yuan [2] - Speculative funds recorded a net inflow of 58.16 million yuan into the feed sector [2]