Hi Atlas,
Susan may have better information as to how long to wait before trying the Nature’s Domain, but here are my thoughts. The LID food is formulated for adult dogs whereas Nature’s Domain is formulated for All Life Stages and also claims to be appropriate for growing large breeds. I think the sooner you can transition to Nature’s Domain the better. Since you are already feeding a salmon based food that appears to be working, the transition may go smoother going to the Nature’s Domain Salmon first before trying the Turkey. You said you are in day 3 but what is the home cooked to kibble ratio?
It does not surprise me that he has not gained weight in the past month, since food has not been staying in his system long enough to absorb all the nutrients. If you do not know how many calories a day is suggested, you might ask the rescue. Other option would be to look at the bag of Natures Domain (or get on the website) and see how many cups of food are recommended for his age and weight, and convert to calories. Then figure up how many calories you are actually feeding with the home cooking and the LID kibble added in. If you need help with this, just let me know how much and what type of chicken, potatoes and kibble you are feeding and his weight. I feed my allergy girl a mixture of THK base mix, home cooked protein and a few kibbles and I have spreadsheets setup to keep track of the calories.
