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Making your Bull 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

Mastergen has been created to take advantage of the demand for the best value genetics through direct marketing and the exciting opportunities which genomics brings to the AI industry.

Our portfolio of Holstein bulls supplied to us by one of Europe’s largest farmer co-ops Masterrind, have been sourced from countries throughout Europe, North America, Canada and a large number from the UK. Our range includes Genomic, Proven and some interesting Polled bulls from some of the most exciting and elite cow families around the world.

Mastergen supply British Blues from the Twyning Ash herd, one of the most reliable sources in the UK. We also supply a unique range of Homozygous polled beef breeds including Simmental, Limousin and Charolais.

Our latest news


Wednesday 5th July 2017

Come and join us later for a BBQ & Drinks at Junction 24, Sedgemoor Auction Centre. See the schedule for the next two days below: Wednesday 5th July 8.00am Market opens for sale cattle 7.00pm FREE BBQ and Drinks (Provided by Mastergen, GTH & J24) Thursday 6th July 10:45am The Bettiscombe Gold Cup Winners Sale…

Joseph Cordy
Joseph Cordy
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Panda Holstein’s 3 Counties Show results

Monday 19th June 2017

Another fantastic day for Panda Holstein’s at the 3 counties show. Congratulations to Molly Westwood. RESULTS: Sr Calf class (4) 1st- Panda Rhubarb Crumble Gem Red (O’Kalif Red) Int Calf (11) 1st-  Panda Black Betty Fools Gold (Brokaw) 2nd- Panda Black Berry Fools Gold (Brokaw) 3rd-  Panda Fanta Fools Gold Red (Fontaine) Jr Calf (6)…

Joseph Cordy
Joseph Cordy
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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