ron2
Posted : 11/27/2008 9:19:23 AM
1 to 1.5 cups twice a day sounds about right, maybe a little generous, at 7 months but then, they do grow pretty fast in the first year. Shadow, who is part Lab was at 22 inches at 1 year. Now, at 5 years, he is 26 inches to the shoulder. Labs grow to 23 or 24 inches, sometimes taller and most go well over 50 lbs in adulthood, making them a large breed in some issues, even if the don't get much taller than 24 inches. Labs, as a breed, can be prone to Hip Dysplasia, both from genetic reasons and sometimes, from structure. So, you may consider formulas that are for large breeds. The primary difference is the calcium ratio and some foods contain glucosamine and chondroitin, though there is no hard evidence that the amounts present (trace or supplemental) are providing any preventative or therapeutic effect, as yet.
On the other hand, an all life stages formula might be okay since Labs are not a giant breed. In very large and giant breeds, overdose of calcium interferes with the function of the parathyroid, which can cause skeletal problems. But I don't know if this effect is present in Labs. But I've always feed Shadow as if he were a large breed. He weighs 65 lbs, which has been holding for more than a year, so I assume that is his adult weight. He is actually a mix of Siberian Husky and Lab, with a predominance of Sibe in metabolism, temperment, and some physiology. For example, his bones are less dense because of the Sibe heritage.
In the end, if he likes the food and he's getting good vet visits, then it's probably okay and any dog may go through a little upset adjusting to a new food. I've heard of dogs having a problem switching to raw until their systems get used to it. So, I can imagine some would happen with changing a commercial diet.