EFFECT OF Lemna gibba AND Ulva lactuca ON HEALTH AND PRODUCTIVE PERFORMANCE IN JUVENILES OF NILE TILAPIA (Oreochromis niloticus)

Currently, mannan-oligosaccharides (MOS) are added to the production costs of Nile tilapia prevent and avoid diseases. An alternative aquatic plants rich in biologically active compounds such as Lemna gibba, a freshwater macrophyte, Ulva lactuca, green seaweed, which have shown productive economic efficiency feed for livestock, poultry, fish, but their effect functional ingredient has not been evaluated. The objective was demonstrate that dietary supplementation juvenile (Oreochromis niloticus) with L. gibba U. lactuca can beneficial on health performance allowing consider these supplements ingredients (MOS). base diet supplemented at percentages 0, 10, 15 20 % (L0, L10, L15, L20; U0, U10, U15, U20; M0, M10, M15, M20) compared mannan-oligosaccharide control. Health parameters (hematological study, lysozyme complement C3 activities) (survival, S; final weight, FW; protein ratio, PER, conversion factor, FCF) were Statistical difference found (p ≤ 0.05) among treatments percentages. U20 showed greatest L15 best results performance. It is concluded be used proportion produce juveniles order promote growth.