Yes, thanks everyone for ideas. Watering down over time seems doable. I had thought about the chicken and rice. have lots of that...and letting them hunt, but difficult here in the very rural forest with bears, bobcats, eagles, badgers...even some pretty mean turkeys....the hunters could very easily become the hunted. I think I am 3 22 pound bags ahead now, and each bag seems to last somewhere between 6-8 weeks. but of course, their needs also need to be balanced with people needs and available finances while on fixed income.