The Effect of Avicennia marina Leaf Extract Addition To the Artificial Feed On the Growth of Litopenaeus vannamei

Mangrove leaves contain abundant bioactive compounds that can optimize the growth of shrimp. This research examined effect adding Avicennia marina to feed on and FCR Whiteleg shrimp determined optimal dose. seeds PL-20 were used in experiments employed RAL method with 4 treatments 3 replications. Different doses leaf extract used: (A) 125 ppm/500 g feed, (B) 175 (C) 225 (D). The amounted 3% total biomass per treatment every day administered 5 meals daily for 30 days. most dose was (D) an absolute 7.71 1.27. However, did not affect SR its value reached 100% all treatments. parameters water quality temperature 27.4–30⁰C, DO 6.3 – 7.9, salinity 13–15 ppt, pH 7.5 7.8. Keywords: marina, Growth, Litopenaeus vannamei