I have been giving Freddie frozen kongs with mashed banana and live yogurt (live because he has been very windy and producing less than solid poops) as his treat when I go out. He only has one a day and in a puppy kong so not very much (he does lick out the bowl I mix it in as well

). He is currently producing piles of poop the consistency of mousse which are impossible to pick up. He is fed on Wainwrights puppy turkey and brown rice. He has had a tendency to be loose since we got him at 8.5 weeks - he will be 17 weeks next tuesday. I have had him on chicken and rice a couple of times and he firms up nicely but once back on the kibble it deteriorates. Most days he starts off solid and gets sloppier as the day goes on but yesterday and today he has started off sloppy. Could it be the banana?

I am thinking I need to change his food and like the sound of Barking Heads??