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Semen Order Form

Make sure we have all the correct details by using our online booking form

Pre Entry Health Testing

StalCAM

View every resident stallion live, and the yard, online now through our unique StalCAM CCTV system

Client Comments

My stallion Wolkenderry is a ‘walk in’ boy at Stallion AI Services. I can’t recommend Tullis, and the team highly enough!! Nothing is too much trouble, the stallions all look fab, and they manage to get the most difficult mares in foal!!! Good Luck to all in 2011. — Jackie Mathieson (Wolkenderry)

AI Equipment Sales

Twemlows Stud

  • The best in the world come to us…

    When you need to be sure your stallion is in safe hands, be reassured that the best stallions in the world come to Stallion AI Services. Our experience in equine breeding goes back to the beginning of AI in this country. Over 10,000 collections performed.

  • The latest technology awaits

    Our business is built on using the best technology and equipment available. Our laboratory offers the most advanced technology in the UK.

  • World Class Facilities

    Our stallion barns are the best around. With specialised turn out paddocks and access to a horse walker, your stallion will keep in top condition with us.

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.