• Labrador retrievers are one of the world's most popular dog breeds.white lab image by Photoeyes from Fotolia.com
  
  

Lab Puppies Grow Quickly

• Most Labs love to eat.dog bones image by Janet Wall from Fotolia.com
  
  According to Gotta Love a Lab, an average eight-week-old puppy should weigh about 13 to 14 pounds. "As the puppy gets older the accepted lab puppy weight is two pounds for each week of age." Using this formula, a four-month-old puppy should weigh 29 to 30 pounds.
  
  

Weight Is Determined by Gender and Breeding

• Be aware of your puppy's bloodline.labrador retriever image by fuxart from Fotolia.com
  
  According to the American Kennel Club, the average size of an adult Labrador retriever can range from 55 to 75 pounds. Males should weigh between 65 and 80 pounds, while females should weigh between 55 and 70 pounds. English Labradors typically weigh less than American Labs. Familiarity with your puppy's sire and dam can give you an indication of how large your puppy will be.
  
  

Bottom Line

• A healthy puppy will increase the chances of a healthy adult dog.Labrador retriever puppy image by crazy.nataly from Fotolia.com
  
  Use the formula of two pounds per week of age until the puppy is about 10 months old. Then consider your puppy's particular background--parents, type of Lab and age. Weigh your dog regularly, consult your veterinarian and take care not to overfeed your puppy or dog. Ribs should be easily felt through the coat but not noticeable. Labs are prone to hip dysplasia, a condition made worse when carrying excess weight, and Labrador retrievers are prone to overeating.