Hi - Merlot joined our family about 2 months ago (time flies) and she has grown taller but doesn't seem to put on much weight. She came to me at 24lbs and is now 27lbs. Does that seem like enough weight? My last Rottie at this age was a good 40-50lbs so I am concerned. I feed her 1042 calories per day however I can still feel her ribs and see her hips.