Hiya
I wouldn't use Dr Johns - know a guy who uses it and his dogs look okay but nothing outstanding...heard lots more negatives that positives about it. Lots of dog men use Gain 28 when they're hard at it and 20% off season...also Red Mills and Australian formula are worth a look as is Chudley's greyhound racer...also some raw - chicken, beef, lamb, tripe, fish, and raw bones and organ meat as well as brown bread and pasta/rice...keep it varied and interesting and don't overfeed - chop up any rabbits etc you catch and most importantly don't give the RSPCA any of your hard-earned cash 'c