I'm not a fan of tripe ,I think it is well overated as a staple dog feed.Pups require a protein percentage of between 24%-27% if on a dry meal diet,.Tripe is low in energy,protein,and fat , it has only about 2/3rds the energy content of beef and
works out about 12% protein and 2% fat.If you give a pup a split 50/50 evening meal.half dry meal ,half beef mince and add fat to the diet in the form of lard ,plus the flaps you get on sheep ribs ,I think you will be doing the pups better service. Cheap cuts of chicken,beef ,lamb are all superior to tripe ,imo.Plus they don't stink going in the do