We've got a female WCS who has just turned 9 months old and she's absolutely skin and bones. We feed her the amount we are told to (Tails) plus treats but there is just nothing to her. When she was weighed about 5ish months she was about 7kg and the vet did comment that she may be on the petite side of her breed. Last weight check was a couple of weeks ago (8.5 months) for worming where she was 7.6kg and the vet didn't seem concerned that she hadn't gained much. She does seem pretty tiny.
Is this in the normal weight range for a 9 month old WCS? She's a very happy, healthy and energetic little pup.