Blood meal is a dry, inert powder made from blood used as a high-nitrogen fertilizer and a high protein animal feed.
Overview
• The percentages in such a meal is N = 13.25%, P = 1.0%, K = 0.6%.
• It is one of the highest non-synthetic sources of nitrogen.
• Blood meal is completely soluble and can be mixed with water to be used as a liquid fertilizer.
• It usually comes from cattle as a slaughterhouse by-product.
• It can be spread on gardens to deter animals such as rabbits or as a composting activator.
• It may also be used as an animal food supplement.
• This will serve as supplement for cattle, fish and poultry.
• It is in fact widely used due to the high lysine content.
• In some countries, it is mixed with molasses before use as animal feed.
• Blood meal, bone meal, and other animal by-products are permitted in certified organic production as soil amendments.
• They cannot be fed to organic livestock.
• Blood meal is different from bone meal in that blood meal contains a much higher amount of nitrogen, while bone meal contains phosphorus.
• Alternatives to Blood Meal include feather meal and alfalfa meal.
• Nitrogen is more typically missing from soils than the other elements provided by most fertilizers.
• Plants grown in soil lacking proper amounts of nitrogen will yellow from the leaves down due to nitrogen deficiency.
• Applying blood meal will help plants become green again.
• Whole blood meal is produced by spray drying at low temperatures, fresh whole blood from animal processing plants.
• The fresh blood is collected in on-site cooling tanks that utilize agitation which prevents coagulation of the fresh blood.
• After delivering to the drying plants the whole blood is centrifuged.
• This is done in order to remove foreign material.
• Then it is circulated through a disintegrator to rid all remaining foreign particles prior to spray drying.
Typical Analysis of Blood Meal
• Crude protein 80 %
• Crude fat 1 %
• Crude fiber 1 %
• Ruminant digestible protein 63.1 %
• Typical Amino Acid Profile
• Methionine 1.0 %
• Crystine 1.4 %
• Lysine 6.9 %
• Tryptophane 1.0 %
• Isoleucine 0.8 %
• Histidine 3.05 %
• Valine 5.2 %
• Leucine 10.3 %
• Arginine 2.35 %
• Glycine 4.4 %
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