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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.
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.
Argento
Argento is by the famous stallion Arko III. As a 4, 5 and 6 year old Argento mainly competed in age classes jumping double clears all the time.
Christian 25
Prior to moving to the UK, Christian 25 stood at the Bockmann stud and was previously ridden by Soren von Ronne jumping up to 1m55 in 3* competitions across Europe. Christian 25 is a modern show jumping stallion who passes on his long legs and scope in canter.
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Pre Entry Health Testing
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- 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.