Granted protein on a percent dry matter basis is higher in the canned food, but you are paying for and filling your dog’s stomach with something that is 75% water. While I have not compared prices for dog food on a dry matter basis, I pretty strongly suspect you would spend less money and your dog would not have to eat so much to get his nutrition with kibble. If you feel your dog needs more protein, perhaps throw a little cottage cheese on top of his kibble, or, easier, buy a dry kibble formulated with more protein. How much protein does a dog require?
Get questions answered to all your concerns on protein in dog food.
Some proteins are better at delivering digestibility and amino acid balance and bioavailability than others, known as protein quality, or biological value. Common dog food protein sources and their biological values include:
Retriever Hi Protein Dog Food, 55 lb. Bag - For Life Out Here
The pet food industry has vastly expanded its choices for dog owners who want to feed their dogs a specific diet, including high quality proteins and high levels of protein. At publication time, the highest protein dog foods include:
Bully Max Dog Food - High Protein, High Fat, All Natural
Old wives tales about dry dog foods high in protein causing kidney disease run rampant both on and off the internet and many people deprive their dogs of what they crave most for fear of damaging their health.Now that we have the basics laid out, we can return to the protein in the food. Many people cite old, outdated research that claims high protein percentages in the food are harmful to dogs and do all kinds of damage, especially to the liver. Fact is that these studies were conducted by feeding dogs foods that were made from poor quality, hard to digest protein sources, such as soy, corn, byproducts, blood meal and so on. From my explanation above, you now already know that it is a question of protein quality that affects the kidneys. Consider a wolf in the wild, who will eat relatively little else but meat if they can help it - these animals don't get kidney diseases on the same scale domestic dogs do. Their protein comes in the form of quality muscle and organ meat though, not processed leftovers from human food processing. It also contains around 70% moisture, whereas most commercial dry foods contain a maximum of 10%. Dogs and other "dog like" animals (canids) evolved eating a diet that consists primarily of meat, fat and bones, which they have been eating for hundreds of thousands of years. Commercial foods, especially dry food, has only been widely available for the past 60 years and we are still learning how much damage certain aspects of it can do. Things have improved quite a bit from hitting rock bottom in the 70s and 80s, but the majority of pet food manufacturers still produce bad foods from poor quality ingredients.