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Guernsey Marketing Service
Your Source for Guernsey Genetics
Guernsey Marketing Service is a subsidiary of the American Guernsey Association designed to unite Guernsey buyers and sellers. For decades, GMS has assisted in both private and public sales of live cattle, embryos, and semen. We provide expert guidance in buying and selling America's most valuable dairy cow.
Grow Your Herd
Sales
Make More Guernseys
Semen
Connect With Breeders
Private Treaty
Find Results
Sales Archive
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