I have ten day old Scottish terrier puppy , born fine then after 2 day he started to get cold and not too interested in feeding, I set about feeding him with puppy milk, he seemed to gain weight but today day 10 he started to lose weight again I have got him to suckle and he really goes for it but is so eager he misses the nipple his brothers are doing very well, he's from litter of 3, the weight of the largest one is 410 grams and he's 165grams, I have made appointment to See the vet tomorrow, but really need help from all you breeders, I'm well experienced breeder but I'm at loss as what to do for the best. Ive been trying to feed him every 2hrs some times he fights me and really doesn't want me to give him extras.