brookcove
Posted : 12/2/2008 8:57:31 PM
Meat meal is not a by-product - it's meat with much of the water removed to make it easier to transport, store, and process. It's fully as nutritional as meat that also undergoes the extrusion process, whatever your opinion of that may be.
Omega fatty acids. It's really quite complicated to run down in a single post. But, for the topic at hand, coat health, both omega-6s and omega-3s are required for good skin and coat health. However, even though we often look to omega-3s lately to enhance skin and coat health, it's actually the n-6s which have a more vital and direct role there.
So why does supplementing 3s have such a good and immediate result? Our food is NOT lacking in omega-6s. But, without the omega-3s, our bodies (and those of dogs), have difficulty processing those omega-6s in their various roles. Provide the n-3s needed, and the n-6s are available for optimum skin health.
Supplementation of the omega-3s is required because as mudpuppy mentioned, these are highly unstable and cannot survive long the rigors of life in a commercial product - production, storage, transportation, more storage, stocking, and then being exposed completely to light and air while the product is being used.
The best source of omega-3s is fish oil because in plant oil it comes in a form that many dogs cannot process.
I've recently become convinced that for those of us who are being careful not to expose our dogs to processed foods, for instance home cookers or raw feeders, we should ALSO feed a high quality source of omega-6s such as borage or primrose oil - especially if your diet doesn't include a lot of red meats. Consider this if fish oil alone is not doing what you'd hoped. There has been a great deal of research to support the fact that a combination of fish oil and borage oil are most effective to control actual skin problems like itchiness or hot spots.