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10-21-2014, 09:00 AM | #16 |
T. Bumpkins & Co. Donating YT Member Join Date: Dec 2008 Location: New England
Posts: 9,816
| I think people need to consider quality of protein before being into total amount of protein. I recently had a discussion with a veterinary nutritionist about this and she feels that lowering the total protein but raising the quality of it in terms of amino acid profile is a better long term move for the health of the dog. Rather than paraphrase, I'll cut and paste her words: "You are hooked on total protein when in fact the dog does not have a total protein requirement – despite AAFCO’s attempt to regulate the dog food products. The final total protein amount in the diet is really irrelevant to nutrition b/c you balance a diet to meet the essential amino acid requirements. In fact when you meet the known amino acid requirement of the dog and then total up the subsequent amount of protein in the diet you get about 10% of the dry matter when using a high quality protein. Foods that use poorer quality (poor amino acid profile) protein sources (beef, lamb and veg for example) have to use excessive amounts of nitrogen to meet the essential amino acid profile. Most dog owners never hear this and worry needlessly about total protein in a diet when the dog actually needs amino acids. Sorry but he physically is an adult (6 yrs old) so there is no more growth only maintenance of protein stores are needed. In fact he is entering into the last half of his expected life span and odds are high he has yet detectable renal changes. Blood renal values do not rise above normal until there has been ~75% loss in function. Disturbing but true and is why better formulated foods, lower total protein but raise the quality of the amino acid profile in their food. A smart long term move that goes unrewarded in the market place." Definitely food for thought.
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10-21-2014, 09:13 AM | #17 | |
I ♥ Joey & Ralphie! Donating Member | Quote:
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10-21-2014, 09:19 AM | #18 |
T. Bumpkins & Co. Donating YT Member Join Date: Dec 2008 Location: New England
Posts: 9,816
| By-products can contain organ meats, bone, etc which some people believe are healthy to animals.
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10-21-2014, 09:35 AM | #19 |
I ♥ Joey & Ralphie! Donating Member | I should have been more specific, and said people should avoid those food whose number one source of protein is from animal byproducts. No doubt about it, some of the by-products can be healthy, but when the by- product is the main source of protein, you are not getting any quality protein. Muscle meat is considered a quality protein and by-products have everything but muscle meat. Since chicken meal contains bones as well as muscle meat, and I don't think there's a real need for by-products, but I understand that when you are feeding a 70 pound dog, by-products could help keep the cost down substantially. If I were choosing a food that contained animals by-products as the main source of protein, I definitely would not want it to be high protein.
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