To R2's point, my normal feed contains 60 pounds of nutri-balancer per ton and my turkey starter 80 pounds per ton.Don't be concerned about how many grasshoppers they eat. Grasshoppers are a normal part of a turkey's diet. Adding mealworms can help increase the protein intake but the reason to feed turkey/gamebird is about more than protein content. They really need the higher levels of vitamins such as thiamine and niacin and methionine that are contained in a quality turkey/gamebird starter.