New DNA Testing Requirement for Natural Service Sires

During the 57th Annual Membership Meeting, Rule Amendment No. 1 passed. Effective immediately, any natural service sire born on or after January 1, 2025, must now meet the same DNA requirements (GGP-100K testing) as AI sires and donor dams before any of their progeny can be registered.

To help clarify the rule change, see the examples below:

Example Scenario 1: On April 5, 2026, Mr. Smith registers bull calf 1P. The calf is the result of natural service. The calf’s sire was born on March 20, 2021, and is not DNA tested. Even though this natural service sire hasn’t been DNA tested, Mr. Smith is able to register the calf because his sire was born before January 1, 2025. Only natural service sires born on or after January 1, 2025, are required to be DNA tested.

Example Scenario 2: In 2028, Mr. Smith applies for registration on bull calf 1S. The calf is the result of natural service; however, this time, the calf’s sire was born February 1, 2025, and is not DNA tested. Mr. Smith is not able to register bull calf 1S because the rule change requires natural service sires born on or after January 1, 2025, have the same DNA requirements as AI sires and donor dams. 1S cannot be registered until his sire meets the current DNA requirements.

ASA encourages breeders to test any bulls born after the first of this year that they anticipate will be used as natural service sires or AI sires. This proactive step will help ensure compliance with the new requirement. Contact the DNA Department at dna@simmgene.com with any questions or test requests.
 
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