[Zapperzy]

I was only thinking the same thing about muscle! I just don't know, I don't expect it to drop off him just I wasn't expecting an increase in weight, seems odd given the amount of exercise he's getting coupled with the lack of food. I'l carry on the same anyways and see if I notice a difference in his body condition.

[Assassins Creed]

Try just feeding his regular meals and cutting everything extra out ie fish oil, treats etc for a few weeks. That way you'll be down to just his meals and as you said its below the guidelines for the brand, could indicate the food he's on is the problem.