It is very important to keep our dog at an adequate weight. Unless your vet advises otherwise, you should try and keep your dog in the weight-range typical for his or her breed and gender.
Here we present a chart of the weight distribution for Golden Retriever dogs. The weight of a typical female ranges from 28kg to 34kg and that of a male from 30Kg to 35kg. That is, 62lbs to 75lbs for females and 66lbs to 77lbs for males.