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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.
Dollar du Murier
This stallion was a stalwart of the French team, winning the Team Gold Medal as well as Individual Silver at the World Equestrian Games in 2002. Together with his rider Eric Navet, they also represented France at the 2004 Olympic Games, were French Champions in the same year and were key members of the French team, which won the Samsung Super League in both 2003 and 2004.
EFS Top Contender
A British bred stallion, part of the winning team in Mexico City Longines Global Champions Tour 2018. New to the top of the sport in 2017, Top Contender has already made his mark. After winning the International Stairway at South of England under new rider Michael Duffy he has gone on to jump at some […]
Catwalk IV
He has proved on numerous occasions that he is a horse with a big future and is a valuable asset to British Breeding.
Semen Order Form
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Pre Entry Health Testing
- AHT Submission Form
- Pre-entry health certificate
- EU only pre-entry certificate
- EU Guidance Notes
StalCAM
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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.