After six weeks, your new puppy has developed just over 70% of his adult brain and still has a lot to learn. This presents a challenge for you, as well as your puppy. Over the coming weeks, his brain will develop further and he will acquire many new skills, such as where and when to go to the toilet, how to walk on a lead, and how to communicate with other people and animals.

*Effect of dietary fish oil on puppy trainability (abstract). Kelley RL., Lipine AJ et al, In Proceedings, Preconf Workshop 6th int, Soc Study Fatty Acids Lipids Cong 2004: 51