i'm pretty sure the consensus is that you should NOT raise them together if you can avoid it. however i'm raising my one lone poult with chicks as i didnt have any other good options. one of the concerns is that turks get blackhead - which will kill them, but not the chicks
my poult is doing great and is the leader of the chicks - i've been using the chick starter but supplementing with more protein. if you have more turks then use turkey starter. thats my $0.02
but i'm sure there is more experience out there... anybody else?