Apparent digestibility coefficients of plant feed ingredients for olive flounder (Paralichthys olivaceus)

This study was designed to determine the apparent digestibility coefficients of soybean meal, soy protein concentrate (SPC), isolate (SPI), rapeseed meal (RSM), pea (PPC), wheat gluten (WGM) and flour (WF) for olive flounder, Paralichthys olivaceus. A reference diet (RF) formulated meet nutrient requirements flounder with 1% chromic oxide (Cr2O3) as an inert indicator. Test diets were prepared contain 70% RF 30% test ingredient. Olive averaging 150 ± 8.0 g, cultured in 400-L fiberglass tanks at a density 25 fish per tank. Fecal collection columns attached each samples obtained from triplicate groups 4 weeks. Dry matter SPC (75%) WGM (76%) significantly higher than other ingredients. Protein (85%), PPC (88%) (89%) ingredients, RSM (77%) WF lower ingredients tested. Lipid (72%) SPI (69%) Energy (85%) (82%) that others tested The availability amino acids generally plant-feed Therefore, seems be efficient potential sources compared Overall, findings current may assist more economical formulation using plant feed flounder.