Proposed is an animal feed additive comprising or consisting of: (a) glucose; (b) galactose; (c) lactose; (d) minerals derived from milk, preferably from cow's milk; (c) proteins derived from milk, preferably from cow's milk; (f) organic acids; and (g) water,
where component (c) is optional.

A composition contains quercetagetin and 6-hydroxykaempferol, and, optionally further includes patuletin. The composition has an excellent antioxidant effect, and can be used as an active additive in food, drugs, health care products, cosmetics, and feed. In addition, the composition can prompt animal growth, reduce ratio of feed to gain, and improve meat quality in the feed.

A composition contains quercetagetin and 6-hydroxykaempferol, and, optionally further includes patuletin. The composition has an excellent antioxidant effect, and can be used as an active additive in food, drugs, health care products, cosmetics, and feed. In addition, the composition can prompt animal growth, reduce ratio of feed to gain, and improve meat quality in the feed.