[Hound Dog Mom]

Hi Nat R –

Just so you know, no studies exist demonstrating that protein has negative effects on giant breed puppies or adults – anything you read about this is myth and nothing more. There is, however, a lot of research proving the protein is not harmful.

Feeding Large Breed Puppies by Susan Winn DVM (Featured in IVC Journal)

“A common misconception found in many internet articles is the claim that dietary protein should be controlled in large breed puppies to prevent skeletal abnormalities. This theory was disproved some years ago (Nap, 1991). Most commercial puppy foods contain more protein than is thought necessary, but studies have shown that protein contents of 23% to 31% (dry matter) do not have a deleterious effect on growth.”

“Decades ago, we considered some adult diets appropriate for puppies. However, a calorie-calcium mismatch is probably common. Adult maintenance foods are often less calorically dense than puppy foods. Additionally, these diets may have calcium and phosphorus levels that are higher in relation to energy density than a large breed puppy diet. If a rapidly growing puppy has to eat more food to obtain enough calories for growth, a calcium overdose is possible.”

“Most nutritionists recommend that large, fast growing puppies eat diets containing AT LEAST 30% protein and 9% fat (dry matter basis).”

The Effect of Breed Size on Nutritional Considerations for Growing Puppies

“Excessive intake of dietary protein has been suggested as a contributing factor to skeletal developmental problems, such as osteochondrosis, in large breed dogs. This hypothesis was tested by feeding Great Dane puppies either 15%, 23% or 32% dietary protein (13%, 21% or 29% of energy). While the low protein diet reduced growth, no detrimental effects from the higher protein diets were observed.”

This is a FANTASTIC article (one of my favorites) on large breed nutrition written by Susan Lauten PhD – I would HIGHLY recommend reading it in its entirety, however here are some of the highlights:

Nutritional Risks to Large-Breed Dogs: From Weaning to the Geriatric Years

“Currently, no evidence exists to suggest that high-protein intake contributes to the development of orthopedic disease in growing large-breed puppies. Previous studies suggesting a risk for high protein and DOD were confounded by higher energy intake in high-protein foods. In general, large-breed puppy diets are formulated to contain approximately 30% protein (DMB) similar to other puppy foods.”

“…feeding adult foods to large-breed puppies before 1 year of age is not recommended because the calcium-to-energy ratio is generally lower in adult foods compared with large-breed puppy food. Feeding an adult food can actually result in greater intake of calcium than feeding puppy foods. Because the puppy must consume a larger portion of adult food to meet energy needs for growth, total calcium intake may actually be higher than with a properly formulated large-breed puppy formula.”

Here is the link to a study done on Great Dane pups that was featured in the Journal of Nutrition. The study concluded: “the differences in protein intake per se did not affect the occurrence of disturbed skeletal development in young Great Danes.”

Do You Know What to Feed Your Large Breed Dog? By Karen Becker DVM

“Studies have repeatedly concluded dietary protein levels have no effect on the development of skeletal problems in large and giant breed dogs. But still today, many breeders of large dogs, owners and even some veterinarians will tell you protein is the problem, even though there is no evidence to prove it. Protein excess is not the problem. In fact, it’s often a dietary protein deficiency that contributes to skeletal problems.”

You may find this of interest as well. Here Dr. Becker interviews a Newfie breeder (not Great Danes I know – however Newfies are generally considered to be a giant breed). This breeder feeds his dogs HIGH protein raw and his dogs don’t experience many of the health problems typical to giant breed dogs and his dogs live much longer than most giant breeds (he had a dog live to be 17 – the typical life span of a giant breed is about 8).

Sorry to bombard you with reading, but large breed nutrition is one of my favorite subjects and I like to make sure people have the facts. 🙂

• This reply was modified 11 years, 5 months ago by Hound Dog Mom.
• This reply was modified 11 years, 5 months ago by Hound Dog Mom.