just had phone call from a friend.his family rescued a 12 month old collie 8months ago.said the dog wont eat anything but chudleys worker crunch but they are worried because she hasnnt put on a lot of weight.i ask if shes been to vet he said all test came back neg.ive never used this food so i couldnt comment. but if any one knows about this food could u give me your opion so i can pass on the messages.also suggested mixing tripe in with food.

i dont think it matters some times .....if a dog isnt growing and gaining as he/she should then try something eles or like you've said add to the food .