What a great analysis.Thank you again for sharing this. Let me start by saying that's a remarkably good feed for a local mill and a layer ration. Someone cared a bit and had some real knowledge when they put that together.
Lets compare, shall we?? Going to post in a Spreadsheet to make it easy.
Minimum Recommend Producer's Pride 16% Layer Walnut Hill 16% Layer Crude Protein 16% 16% 16% Crude Fat +/- 3.5% 1.5% Min 2.5% Min Crude Fiber +/- 3.5% 10% Max 4.5% Max Calcium +/- 4.0% +/- 4% +/- 4% Phosphorus 0.40% 0.40% 0.64% Lysine 0.60% 0.60% 0.80% Methionine 0.30% 0.32% 0.36%
In short, PP 16% Layer meets or exceeds the minimum recommends on crude protein, key (disclosed) amino acids, Calcium Phosphorus. Fat is low, fiber is high - likely because its basic grain mix (the bulk of the feed) is also used by PP in mixes intended for other types of livestock. Ingredients begin Wheat Middlings, Ground Corn, Corn Distillers Dried Grains with Solubles, Calcium Carbonate, Dehulled Soybean Meal. We know the calcium carbonate is what is used to provide the 4% calcium by weight, which tells you how little soy is in it.
For comparison, even though the total crude protein is the same, Walnut Hill's blend has about 12% more Methionine (Connective tissue, skin, digestive tract), 33% more Lysine (Muscle building mostly) and over 50% more phosphorus (helps bone growth and Ca : P ion balance, buffers excess calcium, too.) Its also much lower fiber, less chance the high fiber will slow digestion or block nutrient uptake in undesired ways. It gets better. Ingredients Corn, Soybean Meal, Processed Grain Byproducts, Dicalcium Phosphate, Monocalcium Phosphate... Dicalcium Phoshate has been studied as alternative to Calcium Carbonate (oyster shell, among other source), and is used widely in parts of Africa and the middle east. Calcium tocixity is much lower when calcium is provided in the form of Calcium Diphosphate as compared to calcium carbonate. I judge it a substantially superior feed. Obviously, I have no way to know how much corn is being blended with how much soy, but if I had to guess, I'd say its probably 60% corn, 20-25% soy meal - meanin that in addition to the excellent Lysine level, it has a very good Threonione level. "Processed Grain Byproducts"? I'm guessing they are looking for a way to increase both Met (a little) and Tryptophan (a bit more) - something like wheat middlings perhaps
Frankly, its better than the layer I'm getting right now, by a fair margin.