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From Wikipedia, the free encyclopedia

Blood meal is a dry, inert powder made from blood, used as a high-nitrogen organic fertilizer and a high protein animal feed. N = 13.25%, P = 1.0%, K = 0.6%. It is one of the highest non-synthetic sources of nitrogen. It usually comes from cattle or hogs as a slaughterhouse by-product.

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Dietary supplement

Blood meal can be used as a livestock dietary supplement and is mainly added to supply dietary lysine for cattle, fish and poultry.[1] Prior to use, it is sometimes mixed with molasses.[2]

Organic fertilizers

Blood meal, bone meal, and other animal by-products are permitted in certified organic production as soil amendments, though they cannot be fed to organic livestock. Blood meal is different from bone meal in that blood meal contains a higher amount of nitrogen, while bone meal contains phosphorus. Alternatives to Blood Meal include feather meal and alfalfa meal.[3] Blood meal is sometimes used as a composting activator.[4]

Pest control

Blood meal can be spread on gardens to deter pest animals such as rabbits. The theory is that the animals smell the blood and are repelled by the odor.[5][6]


Blood needs to be dried before being used as blood meal. Several drying methods are available: solar drying, oven drying, drum drying, flash drying or spray drying.[7]

See also


  1. ^ Henry, William Arnon; Morrison, Frank Barron (1915). Feeds and feeding: a hand-book for the student and stockman. Henry-Morrison. p. 184.
  2. ^ King'ori, AM; Tuitoek, JK; Muiruri, HK (1998). "Comparison of fermented dried blood meal and cooked dried blood meal as protein supplements for growing pigs". Tropical animal health and production. 30 (3): 191–6. PMID 9719848.
  3. ^ "Using Blood Meal To Improve Your Garden Soil".
  4. ^ "University of Illinois Extension". Composting For The Home Owner. Retrieved 2 September 2016.
  5. ^ Bradley, Fern Marshall; Ellis, Barbara W. (1997). Review: Rodale's All-New Encyclopedia of Organic Gardening: The Indispensable Resource for Every Gardener. Rodale Press. p. 11. ISBN 978-0-87596-743-1.
  6. ^ Poisson, Leandre; Vogel Poisson, Gretchen (1994). Solar gardening: growing vegetables year-round the American intensive way. Chelsea Green Publishing. p. 103. ISBN 978-0-930031-69-5.
  7. ^ Heuzé V., Tran G., 2016. Blood meal. Feedipedia, a programme by INRA, CIRAD, AFZ and FAO. Last updated on March 31, 2016, 10:31

This page was last edited on 17 March 2019, at 21:37
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