During a dog's pregnancy, owners should provide the female dog with sufficient high-quality feed to supplement trace elements and vitamins and promote normal growth and development of the fetus. From the early stages of pregnancy, protein feed should be gradually increased. After one month, meat, bone meal, and fish meal should be added appropriately. After 45 days, lunch should be added once a day. After 50 days of pregnancy, the feed needs to be reduced by 1/4.