CDCB Accepted goat ID numbers¶
For genetic evaluations, animal identification (ID) is recorded with a 2-character breed code, a 3-character country code, and a 12-character national ID.
Example: AIUSA000000908505
Most goats with records in the national dairy database have IDs provided by the American Dairy Goat Association (ADGA), which assigns a 9-character ID that is expanded to 12 characters by adding zeroes to the left of the ADGA ID. Historically, those IDs had included registry status as a prefix to a 7-character ID number (for example, a prefix of 18 identified an animal as part of a grading-up program). In 2005, ADGA stopped including a prefix in the ID and began submitting that information in the registry status field. The prefix was also removed from some historical records if it was not required for uniqueness. The G prefix for grade animals fills position 7 from the right; thus, for IDs over 999999, the millions place is in position 8 from the right.
| ADGA Registry Status ID |
Interpretation of ADGA ID | Examples | National ID Alias (1) |
| 00####### | Purebred | 000123456 | 000000123456 |
| 18####### | American | 180123457 | 000000123457 |
| 19####### | British | 190123458 | 000000123458 |
| 00G###### | Grade animals with an ID of 999999 or below | 00G012345 | 000000012345 |
| 0#G###### | Grade animals with an ID above 999999 | 01G234567 | 000001234567 |
(1) Registry status may be excluded in some ID ranges (see ranges defined below) when not required for uniqueness.
In addition to ADGA IDs, national IDs can be an eartag ID assigned through the Dairy Herd Information program, an American Goat Society ID, or an American ID. For eartag IDs, AAA and ZZZ are the positions of the alphabetic characters. In ID ranges where the registry prefix is required for uniqueness, XXX represents 000, 180, 190, or 00G and YYY represents 001, 181, 191, or 01G as described above.
| National ID Ranges | Interpretation | Unique across breed | |
| Beginning | Ending | ||
| 000 ##AAA# ### | 000 ##ZZZ# ### | Eartag ID | Yes |
| 000 000 000 001 | 000 YYY 145 283 | ADGA ID (1) | |
| 000 XXX 000 001 | 000 XXX 010 562 | ADGA ID | No |
| 000 000 010 563 | 000 000 521 999 | ADGA ID | Yes |
| 000 XXX 522 000 | 000 XXX 593 199 | ADGA ID | No |
| 000 000 593 200 | 000 001 142 873 | ADGA ID | Yes |
| 000 YYY 142 874 | 000 YYY 174 466 | ADGA ID | No |
| 000 001 174 467 | 000 049 999 999 | ADGA ID | Yes (2) |
| 000 050 000 000 | 000 199 999 999 | American ID | Yes |
| 000 200 000 000 | 000 200 099 999 | American Goat Society ID (3) | No |
| 000 200 100 000 | 000 300 001 000 | American ID | Yes |
(1) ID created with '18' or '19' registry status overlap with possible American ID that are not part of any assigned (available) range.
(2) ID 000 001 319 046 is not unique across breeds.
(3) American Goat Society IDs overlap with American IDs assigned to Cattle Fax; however, Cattle Fax should not be assigning goat IDs.
To enable herdbook IDs to be unique across all goat registry organizations, the following prefixes have been assigned:
| REGISTRY_ACRONYM | REGISTRY_LONG_NAME | FORMAT_PREFIX |
| ADGA | AMERICAN DAIRY GOAT ASSOCIATION | 00000 |
| TMGR | THE MINIATURE GOAT REGISTRY | 00030 |
| MDGA | MINIATURE DAIRY GOAT ASSOCIATION |
00040 |
| AGS | AMERICAN GOAT SOCIETY | 00020 |
| KGBA | KINDER GOAT BREEDERS ASSOCIATION | 00050 |