@Hevz - I hope that you have enough information from your thread to enable you to search for, and choose a suitable food for your Border Collie. I also hope that a change of diet will help calm him down, thereby improving his life, health and working ability. I would very much like to hear how you get on.
* With reference to the other comments on this thread regarding promotion of particular products, it has highlighted the need for guidelines and Tiny Planets is writing to David to ask how he wishes to proceed on this matter. Meanwhile, as a temporary measure I have issued some general guidelines on how to help new members select a suitable product. These can be found here