The occurrence of fish diseases contributes to massive economic loss to the aquaculture industry. Edwardsiella tarda, a known pathogenic organism in Oreochromis mossambicus, infects several freshwater fishes. The present study attempts to find an effective treatment against E. tarda infection using natural plant-based bioproducts. Tamarindus indica seed extract was used to study its antibacterial activity against E. tarda. The study revealed that the petroleum ether extract and ethanolic extracts were effective in controlling the infection. It was found to be effective in both in vitro and in vivo. A maximum zone of inhibition, i.e., 9 and 24 mm, was recorded when 40μL of the petroleum ether extract and 40 μL of the ethanolic extract were loaded separately in the well against the test organism. Results showed that the petroleum ether and ethanol extract of T. indica seed were effective in treating the E. tarda infection.

鱼病的发生给水产养殖业造成了巨大的经济损失。Edwardsiella tarda，一种已知的Oreochromis mossambicus病原生物，会感染几种淡水鱼。本研究试图找到一种使用天然植物基生物产品对抗迟发性埃里希体感染的有效治疗方法。用罗望子种子提取物研究其对迟发性大肠杆菌的抗菌活性. 研究表明，石油醚提取物和乙醇提取物可有效控制感染。发现它在体外和体内均有效。当将 40 μL 石油醚提取物和 40 μL 乙醇提取物分别装入孔中以对抗测试生物时，记录了最大抑菌圈，即 9 和 24 mm。结果表明，籼稻种子的石油醚和乙醇提取物可有效治疗迟发性大肠杆菌感染。