Fullblood dams in Japan are not expected to feed calves to weaning. Nutritional supplementation of fullblood calves commences from about 10 days of age. A typical ration consists of corn, mill mix, soybean meal, roughage (Timothy, Bermuda grass, oaten hay and Italian ryegrass).
Key mineral and vitamin supplements include Vitamin A, D and E, calcium. The scale of the Japanese domestic market supports the production of manufactured pre-mixes suitable for the entire growth period. Typical calf premixes are formulated at CP:18-22%, TDN:72 ~ 74%. Fullblood calves are fully weaned at 4-5 months of age, 150 ~ 200kg.