Table 2: Ingredients, formulation, and composition analyses of the diets. Analysis was conducted on pellets after extrusion.

– Diet (%)
Ingredients 1 2
Fishmeala 35.0 14.0
Bioprocessed soybean mealb 0.0 21.0
Wheat middsc 12.0 10.0
Whole wheatc 17.7 15.2
Poultry byproduct meald 10.0 15.0
Blood meale 2.0 2.0
Feather meald 7.0 2.5
Vitamin premixf 1.3 1.3
Mineral premixf 0.8 2.0
Micro-mineral premixf 0.8 0.8
Choline chlorideg 0.6 0.6
L-Lysineh 1.5 2.0
L-Methioninei 0.3 0.5
Stay-C 35j 0.2 0.2
Fish oilk 11.0 13.0
Total 100 100
Chemical analysis (% dry basis) – –
Protein 43.18 43.85
Lipid 15.91 14.28
Ash 2.42 3.60
Nitrogen-free extract 20.48 24.33
Dry matter 93.00 95.20
Gross Energy (kJ/g) 16.5 16.0
Protein : Energy (MJ/g) 26.2 27.4

a Special Select, Omega Protein, Houston, TX; b SDSU; c Consumer Supply, Sioux City, IA; d Tyson Foods, Springdale, AR; e Mason City Byproducts, Mason City, IA; f NutraBlend, Neosho, MO; g Balchem, New Hampton, NY; h CJ Bio America, Fort Dodge, IA; i Adisseo USA, Alpharreta, GA; j DSM Nutritional Products, Ames, IA; k Virginia Prime Gold, Omega Protein, Houston, TX.