Lung cancer symptoms. The early symptoms of lung cancer may be a slight cough or shortness of breath, depending on which part of the lung is affected. As the cancer develops, these symptoms may become more severe or intense. Like many other types of cancer, lung cancer may also cause systemic symptoms, like a loss of appetite or general fatigue.
Medium breeds (e.g. cocker spaniel size) begin swapping over at about 8 months, Large breeds (such as Golden retriever) must stay on puppy food for at least 12 months and Giant breeds (e.g. Great Danes) stay on puppy for for 18-24 months. When swapping the food ensure you do it over 7 days.
Maturation. Changing from puppy food to adult food depends on the size of your dog as an adult. If he is a small breed and will not exceed 30 pounds, he is mature at 10 to 12 months old. Some small breeds are mature before 10 months of age. Medium breeds are dogs that do not exceed 80 pounds at full growth.