Effects of Fermented Cottonseed and Soybean Meal with Phytase Supplementation on Gossypol Degradation, Phosphorus Availability, and Growth Performance of Olive Flounder (Paralichthys olivaceus)

To reduce anti-nutritional factors in plant protein sources for fish meal replacement in fish feeds, cottonseed and soybean meal (CS) were fermented with Aspergillus oryzae. A feeding trial was conducted to verify the effects of fermented CS (FCS) with phytase supplementation on gossypol detoxification, phosphorus digestibility, antioxidant activity, and growth performance of juvenile olive flounder over 10 weeks. Four diets were formulated to...