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Balou Star
In England, Balou Star produced the best 2014 show jumping foal in the country. In Switzerland, he set the 8th best jumping foals.
Murka’s Gem
Murka’s Gem is the identical reincarnation of the original Gem Twist and clearly knows what it’s all about, both when jumping and breeding. He already has his first crop of foals on the ground and is an exciting prospect for anybody looking to breed a serious show jumper.
Russel II
Russel II is a fully approved AES stallion from the Holstein Stamm line 4232. He competed at the 2008 Olympic Games in Beijing as well as on numerous Nations Cup Teams, jumped on the 2006 World Championship team in Aachen and has won many classes including Puissance, Grand Prix and Six Bar.
Valentin R
Valentin R is an AES approved stallion and International Grade A showjumper by the great stallion HEARTBREAKER out of a KWPN KEUR mare by Indorado. This is a breeding line which guarantees success. His full brother is also an International showjumper in the USA. Valentin R has been competing successfully at the very highest level with Michael Whitaker and was part of team GB at the 2015 European Championships.
Semen Order Form
Make sure we have all the correct details by using our online booking form
Pre Entry Health Testing
- AHT Submission Form
- Pre-entry health certificate
- EU only pre-entry certificate
- EU Guidance Notes
StalCAM
View every resident stallion live, and the yard, online now through our unique StalCAM CCTV system
Client Comments
I use Stallion AI Services to store all the semen for Elite Stallions, I have been delighted with the service they offer both to myself and to all my customers.— Lisa Niemy (Elite Stallions)
In addition, their collection facilities are second to none, and as good if not better than many of the stations I visit in Europe. Tullis has a first class reputation amongst stallion owners in Europe, so cant recommend him highly enough!
AI Equipment Sales
Twemlows Stud
Welcome to Stallion AI Services
Stallion AI Services has been successfully practising AI for over 18 years. The centre is owned and managed by Tullis Matson.
We have collected semen from over 600 stallions and carried out over 11,000 collections.
We boast the latest technology in our laboratory, which is envied and admired by breeders throughout the world and we offer a wide range of services including semen freezing and storage, fertility testing, fresh and chilled semen distribution, mare insemination centre, training courses and AI equipment.