Thursday, April 7, 2011

DOG Food Problem and Selecting Protein

The problem of selecting the proper protein blend for a specific dog can be very confusing but can be simplified by applying this single rule: When choosing the protein blend that is best for a specific breed of dog look for the protein sources that were in that specific breed's native environment and then match them as closely as possible. When considering an environment's protein sources you should take many factors into consideration. First, with the environment's meat protein sources you should remember to look beyond labels such as cattle before assuming that they are describing beef. In some parts of the world the term cattle can be referring to a herd of goats, water buffalos, or reindeer. Cattle may not always mean beef from the state of Texas.

Also with each protein source the amino acid balance can be different depending upon the environment from which we take our sample. When testing food sources, we find that herring from the Pacific Ocean has a different amino acid profile than herring from the Atlantic Ocean. Also, Texas longhorn cattle produces beef with a different amino acid profile than Pennsylvania dairy cattle beef.

Second, consider all the protein sources of the area to establish if that environment's meat protein is the type of protein that is best for a specific breed. For example; The Chow Chow developed in an area of China
where meat is available as a dietary source of protein. However, the meat source of protein was the Chow Chow and it was available to the humans. The Chow was fed grains to produce a tender and nicely marbled meat for the human's table. This breed's development as a vegetarian also explains why today's Chow Chow has the jaw and flat tooth structure of a grain eater. Also, why today's Chow Chow has a body with a high fat to low muscle fiber ratio. Therefore, after considering all the factors for a Chow Chow's dietary protein, it may be best to use only the vegetable sources of protein found in its native environment.

Third, the amount of each protein source used in a single dog food becomes important since the amount of each source found in a specific environment can be quite different. A breed that developed in an environment that had few grain crops would need less grain in their food than a breed that developed in an area where grain protein comprised the bulk of their dietary protein intake.

Fourth, the blend of protein sources is important since different sources of dietary protein contain different amounts of both the essential and non-essential amino acids. For example, equal amounts of lamb meat,
beef, fish, chicken, or horse meat from the same environment will contain different amounts of essential amino acids. Sources such as soy, corn, rice, beet, wheat, and alfalfa also contain very specific amounts of essential and non-essential amino acids in their protein.

The following two tables show how different protein food sources can provide different amounts or types of protein. : The differences in protein and fat ratios of different meat sources from different areas of the world.


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