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]
Classifications
It is a proteinaceous concentrate according to classifications of feed.
It is a protein-yielding feedstuff according to classifications of feedstuffs.
Processing
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]
^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.
doi:
10.1023/a:1005015804804.
PMID9719848.
S2CID28241258.
^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.
ISBN978-0-87596-743-1.
^Heuzé V., Tran G., 2016. Blood meal. Feedipedia, a programme by INRA, CIRAD, AFZ and FAO.
https://www.feedipedia.org/node/221 Last updated on March 31, 2016, 10:31