Not a great idea, may cause diarrhea. I would avoid all fried foods for my dogs. Raw fish or lightly broiled is fine but make sure it isn't a fish that carries a lot of contaminets. Good fish are Tilipia and some Salmon. I know there is some salmon you must freeze for a month to kill a parasite it carries.
skip the fried food, but how about simmering it in a little water, or feeding it raw? please do not feed salmon from the pacific northwest raw tho, it carries a parasite.