Jazz Lover,
The general consensus is that puppies can start regulating calcium uptake around 8-10 months old. To play is really safe you could wait until 1 year.
Read this for an understanding of what “all life stages” means: /frequently-asked-questions/aafco-nutrient-profiles/
Essentially you can feed an “all life stages” food to a puppy because it is approved for growth and reproduction as well as adult maintenance. A lot of the labels on foods (ie large breed puppy, large breed adult, senior, etc) is just marketing. If pet food companies really knew what they were doing in formulating dog foods, there would be a lot more “large breed puppy” foods on the list. If I were you, I would not get caught up on the label. You don’t have to feed a food specifically for a large breed puppy or large breed adult. You need to make sure it is approved by AAFCO for growth and reproduction (aka puppy food) or all life stages.
I had to google FCP surgery. This was done to correct elbow dysplasia? As far as supplements go, I have heard the same. You don’t want to give supplements until they are done growing. I think you’d be safe starting them at 1 year. Does your vet have an opinion on this? I think you are ok with giving the salmon oil as long as you account for the calories that it adds. How much you feed will depend on the body condition of your dog. It is hard to say how much his metabolism will slow down. I would just watch his form and if he looks like he’s getting chunky, cut back on the food. If he starts to look too skinny, increase his food. Refer to the body condition chart in the Dr. Becker article I posted previously. I keep my dog lean because he is older and has arthritis. It is much easier on the joints.
Bottom line- if I were you I would continue to feed a food on HDM’s list and hold off on additional supplements until 1 year or per your vet’s instructions. I hope that is helpful to you.
