background info: I've had Sammy (border collie australian shepherd X ) about 3 months. He is about a year old- totally sweet, easy guy to have, has settled in well. We got him from a resue group who got him as a stray. When he came to us he was quite underweight and had tons of dry dull coat. I started him on Innova Evo and although he seemed to like it, he just didn't put on much weight. I switched to Wellness with a little Evo on top and he put on a decent amount of weight-- he is now shiny and healthy looking. the problem: In the last week Sammy has stopped eating his breakfast. He is showing no interest in food until much later in the day. Today he didn't eat until we got back from our walk in the evening (almost 10 pm).He may have had a few bites but not much at all. He seems otherwise fine. He runs, plays and retrieves like crazy. I was hoping he'd gain a bit more weight still and I really can't figure out why he's gone from eating a full bowl of food morning and suppertime to eating nothing until 8 or 9 at night.