Semen for Sale

The selection and sale of Guernsey bull semen is an important part of the Guernsey Society’s business and since 2000 has been based on the use of a specific Guernsey Merit Index (GMI). The GMI was developed by geneticist Dr John Woolliams in conjunction with a committee of Guernsey breeders who agreed on the priorities for breed improvement and within the Index the balance between Production and Type was set at approx 60-40 and GMI was the first UK index to give emphasis to Type Improvement (Legs/Feet and Mammary).

View our current semen for sale as well as find out about each individual Bull’s history from this section of the website including the A2 status of Bulls.