Animal feed resources information system

Seashells and coral

IMPORTANT INFORMATION: This datasheet is pending revision and updating; its contents are currently derived from FAO's Animal Feed Resources Information System (1991-2002) and from Bo Göhl's Tropical Feeds (1976-1982).


Click on the "Nutritional aspects" tab for recommendations for ruminants, pigs, poultry, rabbits, horses, fish and crustaceans
Common names 
Seashells, clam shells, oyster shells, conch shells, coral, coral sand
Related feed(s) 
Seashells are almost pure calcium carbonate (95-99%) and are good sources of calcium for all classes of animals. Clam shells, oyster shells, conch shells, coral and coral sand can all be used for feeding.
Nutritional aspects
Nutritional attributes 
Seashells and coral contain about 37% calcium and no phosphorus.
Shells that have been ground to a coarse grit seem to be more palatable to laying hens; for other animals the shells should be finely ground.
Nutritional tables
Tables of chemical composition and nutritional value 
Datasheet citation 

DATASHEET UNDER CONSTRUCTION. DO NOT QUOTE. https://www.feedipedia.org/node/736 Last updated on March 16, 2010, 17:13

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