I have two german line GSD...one is 2 and the other is 3. I started them on Canidae about 7 months ago. The three year old male I just adopted at the beginning of january. The last week and a half they both seem kind of bored of their food and didn't finish their food. The male eats non-stop but now I have noticed that he plays with his food and doesn't finish it until I tell him to. The female would just walk away from it. I feed the male 4 cups a day and the female 3 cups. Do you guys think they are bored of their food and I should change it? If yes do you guys have any suggestion because they are on Canidae Lamb and Rice right now. I don't give them a lot of snacks either. Thanks !