Low-sodium chicken broth is what I used to force feed water into Minnie. I honestly think IV might not be a bad thing to give your boy a head start to work from. It was enough to get Minnie to eat again the last week of her life.
I don't know about food. Chicken and rice always worked well when Minnie wouldn't eat her kibble. Eggs are great to get some protein into your boy's body (another food recommended by my vet).
__________________ Cookie ;;; RIP Minnie |