midwest greyhound supply is a pet supply distributor serving professional dog breeders and kennels, sporting dog trainers, and k-9 handlers. get bulk prices on the food, supplements and vet supplies that keep your animals healthy and performing their best. mgsi carries a full line of top dog food brands, delivered directly to you by the pallet or by the ton. with access to thousands of professional kennel supplies at wholesale prices, mgsi is your partner for managing the care and …