cat food tends to be very strong in aroma and very "fishy". The cat foods that drive a cat crazy sometimes have added scents to them to make the cat like it more.
I have seen a cat kill and eat their living prey, and when you see that you start to realize that cats maybe do not care so much what their food tastes like. I think the food we give them in the cans are so full of flavor that it is something they would never find in nature.
I mean why does a cat like tuna? In nature they would NEVER even see a tuna let alone be capable of catching and killing it.
RE: Some dogs just don't want store-bought treats