Formulateᆞeᆞᆞrᆞᆞtᆞᆞzᆞᆞaᆞᆞsᆞᆞjᆞᆞiᆞᆞoᆞᆞbᆞthe ration for the summer period for a first-calving cow with a body weight of 650kg and a milk production of 26kg/day with 4.0% fat content in the third week of lactation, exhibiting a high concentration of ketone bodies in the milk, blood, and urine. The cow's body weight decreases by 1kg per day. Use high-energy feeds with high sugar content and alkaline ash reaction for formulating the ration. Describe the disorders of ketosis, indicating the symptoms, prevention methods, and treatment​