The word anthocyanin comes from the Greek words Anthos, meaning flower, and kyanose, meaning blue. Anthocyanins give red, purple, and blue colors to plants. In acidic conditions, they appear as red pigments and in alkaline conditions, they appear as blue pigments. The intensive nature of agricultural (animal) production, with a high density of individuals in animal production facilities, very often contributes to the occurrence of disorders and diseases in animals that threaten this production. A major problem for the animal organism is the effects and consequences of oxidative stress or excessive production of free radicals, which are the main cause of metabolic disorders in cows in the transition period, and antioxidants can prevent or at least mitigate these conditions. Anthocyanins as a source of natural antioxidants play an important role in increasing the antioxidant potential that protects the cell against oxidative damage. Some anthocyanin species may have an enhancing effect on mRNA expression and superoxide dismutase activity. The bioavailability of anthocyanins is relatively low due to poor absorption in the digestive tract. In our region, colored corn, wheat, barley, and sorghum can be used as anthocyanin sources in the domestic animal diet, black soybean, rye, and black and red rice also have high anthocyanin content. Purple corn can accumulate much more anthocyanins than commercial corn varieties.