What's always worked for me is feed them for the work they've done not what there going to do by that focus on wet feed and a digestible one before and plough it into em after..
Some food points from lads regards pups I do think people over think it, I to used to do as Steve did ie the fallen stock off the odd farmer I knew just the odd sheep every couple of weeks can't beat it either chop em up n freeze or take the jacket off n hang great if pups on n as said get stocked up on them pheasants either breast them or stand on there legs n skin em feed em that way or put em through through th