. . "MATERIALS AND METHODS Protein samples was collected, including a) forages (alfalfa (Medicago sativa), betch (Vicia sativa) and orchard grass (Dactylis glomerata)), b) vegetable byproducts and seeds (corn gluten meal, cottonseed, canola meal, safflower paste, coconut meal, soybean meal, malt sprouts, corn bran, wheat bran, cottonseeds), and c) animal by-products (meat and bone meal, fishmeal, feath" . .