
it isnt as easy as just increasing the amount fed, one of my boys was on burns as a pup and he didnt gain weight, by increasing the amount of burns all it did was give him the runs, which often happens if you over feed.
I would check with your pups breeder to make sure he is gaining the right amount of weight, you should also be able to tell by his overall coverage. If you want to continue with burns it wouldnt hurt to add some naturediet or tripe :)