ABSTRAKPenelitian untuk mengetahui pengaruh ekstrak biji Salvia hispanica. L terhadap kesehatan ikan patin yang diinfeksi bakteri Edwardsiella. tarda. Biji Salvia hispanica.L diekstraksi dengan pelarut etanol 70%, dan memiliki nilai rendemen sebesar 1,6%. Kultur bakteri Edwardsiella. tarda pada media TSA. Ikan patin diinfeksi bakteri Edwardsiella. tarda 107cfu/ikan. Nilai (IC50) ekstrak Salvia hispanica.L adalah 11,1 mg/L. Pengamatan kesehatan ikan dilakukan secara makroskopis dan mikroskopis. Parameter makroskopis adalah Average Body Weight, Average Daily Growth and Survival Rate, sedangakan mikroskopis adalah pengamatan histopat organ ginjal dan hepar Organ ginjal ikan yang diinfeksi bakteri Edwardsiella. tarda namun tanpa diberi ekstrak tampak degenerasi vakuola dan nekrosis pada sel tubulus ginjal, sedangkan organ ginjal ikan kontrol dan ikan yang diberikan ekstrak dengan dosis ¼ IC50, ½ IC50, IC50 dan 2IC50 tampak sehat dan normal. Pada organ hepar ikan yang diinfeksi bakteri Edwardsiella. tarda namun tanpa ekstrak tampak ada nekrosis pada sel hepatosit, melanomakrofag serta degenerasi vakuola, sedangkan organ ginjal ikan kontrol (A) dan ikan yang diberikan ekstrak tampak sehat dan normal. Nilai ABW, ADG dan SR tertinggi adalah ikan yang diberikan dosis ekstrak Salvia hispanica.L dengan dosis IC50 sebelum diinfeksi Edwardsiella. tarda (D) dengan nilai ABW (86,5 gram), ADG (0,36 gram/day) dan SR (100%).Kata Kunci: Salvia hispanica.L, Edwardsiella tarda, Pangasianodon hypophthalmusABSTRACTResearch to determine the effect of Salvia hispanica. L seed extract on catfish’health which infected with Edwardsiella. tarda. Salvia hispanica. L seeds were extracted with 70% ethanol, and had a yield value of 1.6%. Edwardsiella. tarda had been cultured on TSA, Catfish infected with Edwardsiella. tarda 107cfu/fish. The (IC50) of Salvia hispanica. L extract was 11.1 mg/L. Fish health observations were carried out macroscopically and microscopically. Macroscopically were Average Body Weight, Average Daily Growth and Survival Rate, while microscopically were studying histopath of kidney and liver. The kidney’s fish infected with Edwardsiella. tarda without being given extract showed vacuole degeneration and necrosis in the renal tubule cells, while the kidney’s control fish and fish given extract at doses of ¼ IC50, ½ IC50, IC50 and 2IC50 looked healthy and normal. The liver’s fish infected with Edwardsiella. tarda without extract, there was necrosis in hepatocyte cells, melanomacrophages and vacuole degeneration, while the kidney’s control fish (A) and fish given extract looked healthy and normal. The highest ABW, ADG and SR were found in fish that given a dose of Salvia hispanica.L extract with an IC50 dose before infecting Edwardsiella. tarda (D) with ABW (86.5 grams), ADG (0.36 grams/day) and SR (100%).Keywords: Salvia hispanica.L, Edwardsiella tarda, Pangasianodon hypophthalmus