bone meal


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bone meal

bone meal, finely ground bone used as a fertilizer for its content of phosphate and nitrogen (about 23%–30% available phosphate and 2%–4% nitrogen); it is an expensive form of phosphoric acid when compared with superphosphates. Bone meal is also fed to farm animals to supply needed mineral food constituents, e.g., calcium and phosphorus.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Bone Meal

 

a mineral additive in feed for farm animals made by processing the bones from slaughtered animals. It is made by grinding bones that are defatted by organic solvents and deglutinated by steam. Bone meal is rich in minerals, particularly calcium (245 g in 1 kg of feed) and phosphorus (118 g). For cattle, 40–100 g of bone meal are added to the ration, and for small animals, 8–20 g. Bone meal constitutes up to 1 percent of the weight of mixed feeds.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

bone meal

[′bōn ‚mēl]
(materials)
A substance made by grinding animal bones; steamed meal, made from pressure-steamed bones, is used as a fertilizer; raw meal is used in animal feed.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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