
I can only give you my opinion, based on my experience of feeding Barf.
When I first swopped to Barf some 2 yrs ago now, my dogs went through a detox, this lasted for about 3'ish months from memory. Symptoms included dull coat, itchy skin, watery eyes but these were the worst symptoms and because they had been on tripe and the odd raw chicken wing before that, I don't think that they suffered as much as a dog that would have been fed on a previous commercial diet. So you may find that his body is doing the same and will continue to do so until he's cleared out.
My dogs are now the picture of health and the Shepherd that I had until very recently although was 7yrs, she looked and acted like a dog of 2 yrs! Her coat was shiney, no stiffness and her teeth and breath were magnificent. She was a very different dog before I changed diet.
I agree wholeheartedly about the food colourings and artificial stuff that could have been making him hyper, now you will be able to see your "true" dog ;) if this was what was changing his personality.
Mine also get raw eggs with shell in their dinner once a week, fresh oily fish like mackeral, sardine, salmon, herring etc. offal, ie, heart,lung or liver once a week, although my 2 have decided that they don't like it so I have to "hide it" in their food :rolleyes:
As has been said on here numerous times before, you are looking for a balance in diet over time, not in one day or one week. I also vary their diet as much as possible so that no 2 days are ever the same.
JME, hope this helps :)