Q. My 2 x 13 year old female dogs and 3 year old st bernard dont want to eat pellets, I cook chicken, rice they ate that for a while but stopped too.
A. It sounds like your dogs may be refusing food because they prefer treats, snacks, or table food. Discontinue feeding anything other than dog food because these sources are not nutritionally complete. Only offer dog food twice a day. If they don't eat, pick it up and repeat in 8 hours. They will realize they will only have dog food to eat and will become hungry and start eating it.