We have Wilderness here in Germany and its supposed to be every good, no additives etc apparantly. If you can tell me which one you have, I can check the ingredients for you on the German website if you like. If he's happy eating it, then it sounds like a good alternative for a couple of days.
Great thank you very much, i have open water, and pure beef, they do praire, and turkey and tripe. They dont write it in english....I thought because it was that price it must be good, its more expensive than his raw meat !! I just get that from the local butcher and make it up myself.. It does say 95% so fingers crossed... 
thank you again..
OK - don't see Open Water but they do
Fresh Water which is: 25% Herring (filet), 25% Duck (heart & liver), 25% Stock - (duck/fish), 20% Salmon, 2% Blueberries, and then small amounts of sea buckthorn, minerals, salmon oil, fenugreek, parsley root, spirulina, dock.
Pure Beef :68% Beef (heart, lungs, liver, meat), 27% Beef stock, 3,2% Cranberries, and then small amounts of minerals, linseed oil, dandilion, yarrow, nettles and hawthorn.
Prairie : 50% Beef (heart, muscle, lung, liver), 25% Stock (beef and kangaroo), 20% Kangaroo (heart, liver, lung), 3.2% Apricots, small amounts of minerals, salmon oil, dandilion, yarrow, nettles, hawthorn.
Turkey: 70% Turkey (heart, liver, meat, neck, stomach), 25% turkey stock, 1,7% sweet potatoe, 1,5% pumpkin, then small amounts of minerals, salmon oil, dandilion, yarrow, nettles, hawthorn leaves.
I couldn't find anything with tripe, maybe they just don't do it here, but they do claim that all the menus are free of cereals and additives, so they look pretty good. Hope that's helped!
Enjoy your trip!!
