Barley, Nutritionally Improved Straw, Peas, Wheat Feed, Maize, Linseed Expeller, Oats, Alfalfa, Calcium Carbonate, Grass Meal, Soya (bean) Expeller, Expelled Soya Oil, Full Fat Soya, Salt, Dried Vegetables, Dried Fruit, Herbs, Yeast - will these ingredients be OK to give to fully grown guinea pigs ? , thank you for any usefull answers