Jack Mackeral -- but put into a colander and wash the excess salt off and make certain it is "jack" mackeral as jack is lower in mercury. Tuna is too high in mercury to give in any quantity... Canned Salmon is fine.... can make a whole meal on a canned fish and some canned pumpkin with some yogurt or cottage cheese in a pinch... sit-stay and onlynaturalpets both sell a canned green tripe.. tripe is good -- though I think the canned smells stronger than the real stuff I get from Hare-today or Greentripe.com, grass-fed green tripe doesn't stink.... dogs go bonkers for green tripe.... when I'm feeding that I seldom bother with a lot of the other vegies for my dogs.
Another post to copy. Thanks!