Market Overview - On September 18, the animal health sector declined by 0.77% compared to the previous trading day, with Huisheng Biological leading the decline [1] - The Shanghai Composite Index closed at 3831.66, down 1.15%, while the Shenzhen Component Index closed at 13075.66, down 1.06% [1] Stock Performance - The following stocks in the animal health sector showed notable performance: - *ST Lvkang (002868): Closed at 26.25, up 5.00% with a trading volume of 3433 lots [1] - Shengbi Biological (600201): Closed at 66.8, down 2.39% with a trading volume of 55.74 million [1] - Ruipu Biological (300119): Closed at 22.06, unchanged with a trading volume of 111.3 million [1] - Other stocks such as Jinhai Biological (002688) and Shunlian Biological (688098) also experienced declines of 1.98% and 2.02% respectively [1][2] Capital Flow - The animal health sector experienced a net outflow of 126 million yuan from institutional investors, while retail investors saw a net inflow of 92.38 million yuan [2] - The following stocks had significant capital flow: - Ruipu Biological: Net inflow of 12.35 million yuan from institutional investors [3] - *ST Lvkang: Net outflow of 3.83 million yuan from institutional investors [3] - Jinhai Biological: Net outflow of 25.51 million yuan from institutional investors [3]