
Actually, there is a potential problem. If your bitch developed comes from a line that are gangly as puppies than you are playing with fire trying to alter something that is genetic with an excess of supplements.
Calcium excess
"Feeding high calcium diets with excess calcium is often blamed for contributing to bone problems in young, rapidly growing dogs. There does appear to be a link between the incidence of hypertrophic osteodystrophy (HOD), osteochondritis dissecans (OCD) and hip dysplasia, and the overfeeding of calcium. In recent studies, researchers fed dogs calcium at a much higher than recommended amount, and compared the incidence of disease in dogs that were fed normal or less than normal calcium levels. As would be expected, the animals that were overfed calcium showed increased incidence of skeletal problems including hip dysplasia."