Thanks for your help Bob will look into Acana food. Oscar is also a working cocker and full of beans I weighed him today and he was 13 kg so at 10 months maybe he's fully grown?
He shouldn't be far off when it comes to height and length but he should now be building muscle which is heavier than fat. This should mean that he keeps the same weight, or may even put some on, but he should start to look a bit leaner and sleek.
Don't just go by his weight alone. Our Chaz's dad is a BIG boy and Chaz, just over 17kg in weight, is definitely following in his father's footsteps. He has a definite waist though and his stomach is well tucked up with his ribs being easily felt.
We've found that Acana and Orijen can be mixed or swapped with no problems so it's easy to move from one to the other to give some variety of taste or adjust the amount of protein in their diet.
With both Acana and Orijen I'd suggest weighing his daily amounts out and you may find that an amount slightly less than the recommended daily amount will provide the best solution.
Bob.