I have a 9 month old black lab "Tiko", my wife has been off for the last week and he has been getting a little more exercise than normal. He is looking a little skinny and I was wondering if we should feed him a little more. My only problem is that she will be going back to work and I don't want to mess with the amount of food we are giving him. We usually both work mon-fri and he gets a good walk in the morning and evening. We play fetch in a little grass area in our complex. It is nothing big but he gets to run and play. On weekends we take him to the soccer field where he gets to run a lot and it really tires him out. She has been taking him to the soccer filed this week while she has been off work and it seems he has lost a little bit of weight. Any suggestions would be great. We are feeding him an adult chow 1.5 cups in the morning and 2 cups in the evening. During the day we keep him in a crate or he goes to doggy daycare once or twice a week.