Synergistic compositions for extending animal feed shelf life

摘要

A combination of entirely natural antioxidants provides an unexpected synergistic effect in extending the shelf life of animal-fat-containing feed when admixed with such fat or feed in amounts which are economically feasible. The specific antioxidants are lecithin, tocopherol and oil of rosemary. All combinations of at least two of these in amounts of from 0.01 to 2.0 percent by weight of lecithin, from 0.0035 to 0.056 percent by weight of tocopherol and from 0.01 to 0.10 percent by weight of oil of rosemary (based on the combined weight of antioxidant and animal fat) inordinately extend the shelf life of animal feed in general and of pet food in particular, when such products contain animal fat.