Supposedly, cats need a much higher level of protein than dogs do, so from what I've read, I wouldn't recommend feeding your cat with dog food over the long term. Supposedly dogs can get by with less protein over the long term.
Might there be a gravy product especially for cats? I know that some cat foods have more gravy than others.
I started last summer when he had an injury and lost a lot of weight, I mixed it in his dry food and he would eat.
That and the silver probably saved his life.
He doesn't really like the canned cat food except for one or two and then sometimes he doesn't like them either.