Effect of some treatment on toxic substances present in ingredients used in fish diets formulation.M.Sc .Faculty of Agriculture, Benha University. Yeast fermented sunflower meal as a replacer for fish meal in the diet of Nile tilapia, Oreochromis niloticus. Growth and physiological responses of Nile tilapia, Oreochromis niloticus fed dietary fermented sunflower meal inoculated with Saccharomyces cerevisiae and Bacillus subtilis Nutritional and physiological studies on freshwater fish Effect of dietary xylanase on growth performance, digestive enzymes and physiological responses of Nile tilapia, Oreochromis niloticus L. fed plant-based diets Effect of Dietary Xylanase on Growth Performance, Digestive Enzymes and Physiological Responses of Nile Tilapia, Oreochromis Niloticus Fingerlings Fed Plant-Based Diets