US 5,697,384 · Granted 1997-12-16

Internal identification apparatus for animals

An internal identification apparatus for animals surely stays in a ruminant without injuring the ruminant. After the ruminant is slaughtered, the apparatus is easily located and collected. The apparatus stays in the first or second stomach of the ruminant. The apparatus has a casing (1) made from material that is resistive to gastric juices in the first or second stomach. The casing (1) has a proper weight and shape so that it stays in the first or second stomach. An antenna (2) is formed internally or externally on the casing (1). The casing (1) incorporates an integrated circuit (3), which includes a memory and a controller for transmitting data stored in the memory through the antenna (2) in response to electromagnetic waves from outside the ruminant. The apparatus enables individual farms to automatically feed cattle and record the data such as weights of cattle, and a cattle market to secure cattle prices and record the quality of meat.

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