The blood meal appear red brown, Crude protein content 80% above.Crude fat 4% above,
Lysine reaches to 7%-9%, which is twice of fish meal.As far as ratio of necessary amino acid to total amino acid, blood meal is NO.1 of several animal protein feeds. Pig farms and chicken farms in some area have adopt method of mixing blood meal and feather meal.Amino acid can take effect of complementation. Both of above can instead of good quality fish meal. When add 2% - 4% of each of them in big and chicken feed, which can be equal of additive amount of amino acid.Animal’s digest can up to 90% and lysine 7.5%. Crude protein of blood meal is quite high and higher than that of fish meal and meat meal. composing characteristics of its amino acid: Lysine percentage is quite high and 7%－8%. It is higher than that of fish meal. Leucine is around 8%.Relatively for content, arginine is very low. So when it is used together with peanut oil cake and cottonseed kernel oil cake, which can improve feeding effect.Protein content of blood meal is at least 80% and protein digest rate is at least 95%.
Lysine and tryptophane percentage in blood meal is high. Due to the two amino acids in plant protein is very low, so blood meal has significant value of protein suppliment in animal feed. Blood meal can be a protein source for making feed of all poultry, many special animals and some verieties of fish.