Hmm. Thanks for the replies. Since I initially put forth the query 5-6 days ago , he's eaten mabe a kilo of salmon , he's turned into a Salmon Meister , won't leave me alone in the kitchen , and sort of cat begs for more salmon. I'm not too crazy about the begging part , but he does certainly love it.
Its not raw incidentally , I do steam it . I think one solution may be to keep with the old wet food, and mix in some of the salmon.
My main reason for trying the salmon , is the majority of the canned food (78%) being only water. I was just sort of doing the math : if the can is 150 gms, the protein is 11% , then there is only 25 gms of protein in a can / also lists it at 213 calories a can. There is Taurine in both his dry food and the canned: doesn't say how much , but is at the very bottom of the ingredient list, so I assume its a negligible amount.