mash vs pellets

[mayrooni]

we currently use pellets in a 5 gal bucket with pvc pipe openings. we have no issue with waste. we found a local place to get mash from that is way cheeper. what 'issues' will i have with mash vs pellets?

 

[ChickenCanoe]

Probably none if they can't bill out the feed.
Mash, crumbles and pellets should be the same nutritionally if from the same manufacturer and formulated for the same age of bird.
Mash is more finely ground. Pellets are more coarsely ground, mixed with a binding agent and run through a pelletizer. To make crumbles, they run pellets through a crumbler.
I like pellets because all the goodies that are added as powders (amino acids, vitamins, minerals) are bound up in the pellet. Sometimes crumbles and mash have such small grain fines that those goodies are lost when the chickens no longer want to eat them.