There is no one definitive answer to this question as it depends on the specific needs and preferences of your chickens. Some chicken owners find that their birds do better on pellets, while others prefer crumbles. Ultimately, you will need to experiment with both types of feed to see which works best for your flock.
Pellets are a more concentrated form of feed, so they can be a good option for chickens that need to put on weight or that are particularly active. Pellets also contain all the necessary nutrients and vitamins that chickens need to stay healthy. However, some chicken owners find that their birds waste less food when they are given crumbles. Crumbles are also easier for younger chicks to eat, so if you have a mixed flock of different ages, crumbles may be the better option.