Making your Bull semen selection easier...

Download our new spreadsheet and simply filter on the relevant trait columns.

Telephone your breeding adviser for assistance on 01823 430317


Our online personalised brochure service enables you to select bulls using a wide variety of traits, specific to your needs!

Download speeds will vary depending on your internet speeds - we recommend to download around 6 - 10 of your favourite bulls at a time.

Telephone your breeding adviser for assistance on 01823 430317

About Mastergen

The policy at Mastergen is to always provide the best quality genetics at the best value prices. Our average straw prices for dairy and beef bull semen are among the lowest in the UK but the genetic merit of the bulls we sell are among the highest!

With a portfolio of bulls to suit all breeders and all budgets, an expert team of breeding advisor’s all previously from Dairy Daughters and a state of the art website designed in-house specifically to make bull semen selection easier, you need look no further than Mastergen.

Our latest news

DIY AI course November 2022

Monday 17th October 2022

Date: 30/11/2022 to 02/12/2022 Venue:Colliton Barton Broadhembury Honiton Devon EX14 3LJ Ready to book? More details and book online This practical, on-farm AI course is offered in two formats, with the majority of time spent on-farm: Full 3-day DIY AI course 1-day DIY AI refresher course DIY AI Training (Artificial Insemination in cattle) An Evolution Farm Vets DIY AI…

Anna Barnett
Read more


Friday 9th September 2022


Anna Barnett
Read more

Any Questions?

If you require more information about our products or services please leave your contact details here and we will get back to you.

    Meet the team