Ducklings can eat mealworms. The high protein value in mealworms makes them more nutritious for ducklings than some other treats. You should consider waiting about 2 weeks before you let your baby ducks eat mealworm.
Why do ducklings need grit to digest mealworms? Mealworms naturally have hard exoskeletons, and baby ducks may find it difficult to break down and fully digest them.
There really isn’t a specific answer to this question. To be on the safe side, wait a week or two after they hatch before you offer them mealworms.
Mealworms are nutritious for ducklings since they are rich in protein. Depending on how big they are and what you feed them, mealworms can easily contain 14 – 25% protein.
Besides mealworms, there are some safe treats for ducklings such as dried shrimps, watermelon, and eggs.