08/04/2026
Did You Know: Every Guernsey in the United States is American born, but NOT every Guernsey born in the United States is an American Guernsey. Even ADGA goats that are the equivalent of BGS British Guernseys are considered Purebred, not American Guernseys. American Guernseys are not the highest level of Guernsey that you can breed.
Confused? Even some breeders don't understand the process and post misinformation making it worse. Here is some info from both British Goat Society (BGS) and the American Dairy Goat Association (ADGA) that can help clarify the steps to breeding up. You can see that the BGS top breed up level is British Guernsey, and the ADGA top breed up level is Purebred.
The steps for breeding a British Guernsey/Purebred Guernsey follow a 6 step process:
1. Identification Register (IR) This is how to record an unregistered female dairy goat of the accepted type of any age to start the breed up process
2. Supplementary Register (SR) Either Experimental or Grade Experimental in ADGA
3. Foundation Book (FB) Either Experimental or Grade Experimental in ADGA
4. Herd Book (HB1) *Does Considered American in ADGA, Bucks Experimental*
5. Herd Book (HB2) **Considered American in ADGA**
6. British Guernsey*1st generation BG Does and Bucks are considered American in ADGA, Subsequent gen does are Purebred, Bucks require one additional generation of breeding up to reach Purebred *
If you would like more information specifically on breeding up Guernseys and how to achieve it, that information is available to GGBoA members on our website in much more detail. If you have any other questions, please feel free to reach out to GGBoA for official information. We have lots of resources to assist no matter what your Guernsey goals are!
Not all Guernsey groups are affiliated with GGBoA and GGBoA does not endorse information posted on unofficial Guernsey goat groups.