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Whin Whin
Whin Whin is a prolific, Grand Prix winning stallion by the well known Holstein stallion Chin Chin out of a mare by Wolfgang.
Together with his rider Dominic Webb they were part of team GB at several Nations Cups and competed at the Young Rider European Championships in Arezzo in 2014. They also won the Grand Prix at the CSIOY show in Deauville in 2014 and a 1.40m Two Phase Competition at the CSI*** in Arezzo in 2017.
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 […]
Ramiro B
Sire of Nations Cup Level Show Jumpers and 4* Eventers. One of the most popular eventing stallion in UK with over 100 mares in 2016 and he was also the first horse to have been made an ambassador with the BWP studbook due to his phenomenal breeding record.
Cassionato
Successful international Grade A show jumper, who together with his rider Michael Whitaker was part of the British team at the 2016 Rio Olympic Games as well as the 2015 European Championships and in the same year helped Britain win the CSIO 5* Furusiyya FEI Nations Cups at La Baule, Rotterdam and Rome.
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Pre Entry Health Testing
- AHT Submission Form
- Pre-entry health certificate
- EU only pre-entry certificate
- EU Guidance Notes
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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.