Jennifer
Posted : 4/2/2006 1:34:48 PM
I too have never heard of there being 16 different levels of by-products, but I think it's easy to put together a general breakdown of what would go where if we look at past research and recall label ingredients.
Whole chickens

rocessed for human consumption
-Out of that comes chicken meat processed for humans
-Organ meat processed for humans
-Possibly feet processed for humans
-Whole chickens processed for pet food (a couple of brands list them as whole, and we assume meal probably falls into this group as well)
-Chicken meat processed for pet food
-Organ meat processed for pet food [listed as by-products (organ meat only), chicken liver, etc.]
-Rest of the carcass processed for pet food industry - general "by-products"
Whole chickens that do not make the grade for human consumption upon processing
-Whole chickens processed for pet food
-Chicken meat processed for pet food (assuming they are not always processed whole)
-Organ meat processed for pet food (still labeled specifically though)
-Rest of the carcass processed for pet food - general "by-products"
Grocery store rejects/passed expiration date chicken products
-Processed for pet food - general "by-products"
And although the 'laws' governing the by-product processing require them not to include feathers and the like, the last part always states 'except what is unavoidable in good processing procedures' (or something very similar...I'm too lazy to surf and quote)
I think it's very safe to assume that anything labeled as just "by-products" *could* be questionable. However by-products listed as purely organ meat would probably be an excellent ingredient.
The whole point to by-products being cheaper as a protien source already sends red flags (IMO) that it is the not the highest quality ingredient for anyone (human or animal) to be eating. We all know that the pet food industry (as a general rule) is all about using the by-products of any kind to make the extra buck. If we are to assume that Hill's or anyone of it's stature were using high quality by-products than I would surely expect to see "organ meat only" or "chicken liver" specifically on the ingredients list.
I don't buy that the by-products from the chickens processed for human consuption are kept seperate from all other forms of by-products. Again because the whole term by-products to me speaks of a way to cover a vast amount of possible loopholes. And frankly most reputable pet food manufacturers are proud of their ingredients and would then PREFER that they be listed more specifically if they are in fact higher quality than the general.
Feel free to add to the breakdown if I missed anything.....this is just my random thinking !