Ingredients Diets2 D1 (control) D2 D3 D4 D5 Fish meal 10 10 10 10 10 Soybean meal 45 45 45 45 45 Yellow corn 26 20 14 8 2 Wheat bran 14 10.5 7 3.5 0 Broad bean hulls 0 9.5 19 28.5 38 Sunflower  oil 3 3 3 3 3 Vitam. and min. mix1. 2 2 2 2 2 Total 100 100 100 100 100

1Vitamins composition/100 g mixture, VA (960000 IU), VD3 (160000 IU), VE (0.8 g), VK (0.16 g), VB1 (80 mg), VB2 (0.32 g), VB6 (0.12 g), Pantothenic acid (0.8 g), VB12 (0.8 mg), Niacin (1.6 g), Folic acid (80 mg), Biotin (4 mg) and Choline chloride (40 g). Composition of mineral mixture (g\100 g mixture). MgSO4 7H2O (12.75), CaHPO4 2H2O (72.85), ZnSO4 7 H2O (0.55), Ca2O6 H2O (0.25), KCl (0.02), FeSO4 7H2O (5), CuSO4 5H2O (2.5), CuSO4 7H2O (0.08), CrCl3 6H2O (0.05), NaCl (0.01) and Folic acid (6). (Local market). 2Diets: Diet 1 (Control diet), diets 2, 3, 4 containing 25, 50, 75 and 100% treated broad bean hulls, respectively. Table 1: Ingredients composition (%) of the experimental diets.