40天小马犬给吃多少狗粮

It's difficult to give a precise answer without more information, such as the size and breed of the dog, its age, and its level of physical activity. In general, a 40-day-old puppy may eat 3 to 4 meals a day and consume anywhere from 3/4 to 1 1/2 cups of high-quality dry dog food per day, split into multiple feedings. It's important to follow the guidelines on the food package, consult with a veterinarian, and adjust food intake as needed based on the individual puppy's growth and development.