Dogs Need Protein
Protein has many functions in the body, but it is best known for supplying amino acids to build hair, skin, nails, muscles, tendons, ligaments, and cartilage. Protein also plays a main role in hormone and enzyme production.
The protein in dog foods can be supplied by animal sources, plant sources, or a combination of the two. Common animal-based protein sources used in pet food include chicken, lamb, fish meal, and beef. Common plant-based protein sources used in pet food include corn-gluten meal and soybean meal.
Why Should Dogs Be Fed a Diet with Animal-Based Proteins?
Even though they are often fed plant-based diets, dogs are not herbivores. They are omnivores: animals that eat both animal- and plant-based foods.
The body structure of domestic dogs-- ideal for eating animal flesh—is similar to that of their carnivorous ancestors and relatives the wolf, coyote, fox, and jackal.
- Domestic dogs possess enlarged carnassial teeth, which are efficient for holding prey and after which carnivores are named.
- The gastrointestinal tract is simple and does not have the capacity to digest large amounts of plant products.
In addition, high quality animal-source proteins contain all of the essential amino acids dogs need, whereas some plant-based proteins might be deficient in some essential amino acids. So although dogs may be classified as omnivores, they are best fed as carnivores.
Recent studies by The IAMS™ Company examined how the type of protein in a diet affected body composition of adult and senior dogs.1
Adult and senior dogs were fed diets with varying amounts of protein from chicken and corn-gluten meal, and their body composition (muscle versus fat tissue) was analyzed. In addition, levels of key blood and muscle proteins were measured.
Compared with dogs fed a diet with 100% chicken protein, dogs fed diets with decreasing levels of chicken and increasing levels of corn-gluten meal had the following:
- Decreased lean tissue
- Increased body fat
- Decreased levels of blood proteins routinely used as markers of superior nutritional status
This was independent of the overall dietary protein level (12% or 28%), which was also examined in each of the four test groups.
As dogs age, body composition and muscle-specific proteins decline. Therefore, another study looked at the differences between feeding senior dogs a 32%-protein chicken-based diet, a 32%-protein chicken and corn-gluten meal diet, or a 16%-protein chicken-based diet. Senior dogs fed the 32%-chicken protein, chicken-based diet had better body composition and a muscle-specific protein pattern identical to that in healthy young-adult dogs. However, those results were not seen in either of the other two diets.
A Little Extra Time Goes a Long Way
Committing the time to maintaining your dog's coat will help keep his shedding under control. Frequent brushing and vacuuming, and feeding your dog a balanced diet such as IAMS ProActive Health Adult MiniChunks will have you worrying less about an overabundance of hair and more time enjoying your furry friend.
1 Data on file. The IAMS Company, 2001.
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How much do you know about the food you’re buying for your puppy? When shopping for puppy food, pay attention to these three sections of a dog food label.
1. The Ingredient Panel
This section lists all the ingredients that make up the product. The ingredients are listed in descending order according to weight before cooking. In dry food, look for a source of high-quality animal-based protein: chicken or lamb, for example. Dogs thrive on animal proteins.
Manufacturers who use large amounts of vegetable proteins might be saving money by providing basic — but not optimal — nutrition. You should also avoid artificial colors and flavors, which offer no nutritional benefits.
2. The Guaranteed Analysis
Near the ingredient panel should be a chart of percentages called the "guaranteed analysis." These figures reveal the basic nutrient makeup of the dog food's formula and protein content. The minimum percentages of protein and fat and the maximum percentages of fiber and moisture (water) should be listed.
3. The Manufacturer’s Name and Address
This information must be included on the label by law. A toll-free number or web address for the manufacturer may also be listed. Manufacturers who list a phone number, such as IAMS™, generally have a high-quality product and welcome consumer calls and questions. If you would like information about IAMS products, visit our website or call us toll-free at 800-525-4267.
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