For example, tilapia feeds produced by San Miguel Foods, Inc., in the Philippines contain the following ingredients: corn, soybean meal, fishmeal, poultry by-product meal, brewer’s yeast, corn gluten, rice bran, copra meal, brewer’s grain, wheat pollard, molasses, vegetable oil, salt, limestone, dicalcium phosphate, ethoxyquin, L-lysine, DL