Abstract: An animal registration management system which enables the individual identification of an animal correctly, quickly, and at a low cost using an animal identifier. This system is an animal registration management system which enables individual identification of an animal by an identifier printed or recorded with an animal registration number belonging to a predetermined management organization, wherein when an animal breeder registers an animal at a management organization, it first obtains an identifier, then reports an animal registration number included in the identifier to the management organization together with individual information unique to the animal which the breeder desires to register, then the management organization registers the reported animal registration number and the individual information in its database and issues an animal registration certificate linking the animal registration number and the individual information.

Abstract: Conventionally, the last some digits of the Animal Registration Number printed on ear tag for identifying an individual animal in a wide area like a nation are simply enlarged for farm use. However, the simply enlarged farm use number is not a desirable number for the farm to use and is inconvenient for the farm to control animals on the farm, The present invention provides the improvement of making the ear tag, containing an Animal Registration Number CN controlled by the specific management department consisting of codes including numerals, letters, or barcodes, to be used by attaching it to an ear of an animal, in order to identify an individual animal. The Animal Registration Number CN having multiple digits prepared at the specific management department is printed at least on one of the sides of the ear tag. Some part of the Animal Registration Number CN is enlarged and printed on the ear tag as a farm use number FN in accordance with a request from an individual farm by using a minimum number of digits.

Abstract: 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.