Food problem (kinda) again

Hey everyone once again I have a food problem, my Sam (golden ret x Irsih/red set) has been on Gilpa working dog food for 17 years which we have never had a problem with (it changed name from value mix if anyone knows of it). Also changed price from £16 to £9 Is anyone else here on it? Well anyway Kodi got into the feed room last night whilst they were waiting for dinner and ate Sams and then got the runs. (overnight ) But I was wondering if this woud be good for Kodi (husky) as she is on Canine Extra at the mo I will need to change her food when shes 10months???
Thanks