Im sure everybody has their own ideas ,but all 25 of my rabbit dogs work 6 /7 hours a day ,some times 6 days in a row,so they need fed and fed the right food.I give them a big feed every second night & the nights between feeds they get a meaty bone .These dogs are housed in out door kennels ,this system has worked well for me over the years and it suits me .Im lucky ,my feeding food bill is only small change and only when i have weaned pups ,I raid the local butchers shop drums twice a week ,where all the trimed waste bones and unwanted trimings go ,at times its sheep meat waste ,another d