Until now we've been feeding the hound on Hills, but I thought I'd try some food on ebay (mymaddog.co.uk) which had very good feedback of the 'my dog loves it' variety, so I got a trialpack and she seems to like it just fine, but I was checking ingredients, and tho' the vitamin ratings seem essentially the same, I did note two big differences as against the Hills: meat @ 'min 4% chicken' (as against 20%) and ash @ 8.4% (double the Hills). Should I worry about these numbers? I don't want to even risk compromising health, needless to say. Thanks for any advice/help.