My boys are doing a 4-H presentation on the feeding of the flock. We have already taken tags from several different feed bags ( Not too much info there) Basically I think they need information on what is in feed so for example why 16% protein and what is the protein. Any input from chicks to grower to layers. Mixed flocks (ducks/geese/guineas/chickens). If you were to make your own feed what do you put in it. As an example of how feeding chickens from 2 flocks differ we had chicks this past spring that we raised from the same place another 4-H family had as well. We brooded our chicks seperately and gave them chick starter, but when the were old enough to join the adults they did not get grower, but ate layer feed like the rest of the flock. The other 4-H family gave their girls grower. When we went to a show over the summer their girls were larger than ours. Now however they are the same size. Theirs did not start laying any sooner than ours. So, is there a purpose to grower? Looking forward to any feedback. My boys will be doing research elsewhere as well, but the info from this site is invaluable.