Tilapia processing waste silage (TPWS): An alternative ingredient for Litopenaeus vannamei (Boone, 1931) diets in biofloc and clear-water systems

The aim of this study was to evaluate the growth performance of Litopenaeus vannamei juveniles reared under biofloc and clear-water conditions fed with different inclusion levels of tilapia processing waste silage(TPWS)based-diets.The experiment was performed in two individual systems:biofloc(BS)and clear-water systems(CWS).The trial used forty 40 L rectangular plastic bins(twenty per system)in a density of 63 shrimp/m^(2).The juveniles were distributed in a factorial completely randomized experimental design.The treatments were based on the percentage of silage inclusion(control or 0,1.5%,3.0%,4.5%and 6.0%of inclusion)in BS or CWS,totalizing ten treatments and four replicates.Survival was above 80%in all treatments and was not affected by both systems and diet.Shrimp final weight and SGR were statistically influenced by system(P<0.05)but not by the diet;and presented high values in BS.The inclusion of TPWS in L.vannamei diets did not affect shrimp performance.In addition,shrimp raised in BS demonstrated better growth performance as compared to CWS.