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Artificial Insemination

The Vet Centre has been approved by the British Equine Veterinary Association (BEVA) to perform insemination with both chilled and frozen semen. We have a similar, high success rates for both chilled and frozen AI; our average end of season pregnancy rates (combined 1st/ 2nd cycle figures) for the last two seasons (2011 and 2012) are over 80% for both chilled and frozen. Artificial insemination can be used on all mares except for those Thoroughbreds whose progeny are to be registered with the Weatherbys General Stud Book.

Mares for insemination with both fresh and chilled semen usually require only once daily scanning which can usually be preformed at your own premises. Alternatively mares can be brought into our nearby facilities if examination with the mare in stocks is more appropriate. Any mare which is sound for breeding should be suitable for insemination with chilled/ fresh semen. It may also prove a more successful method for mares who have previously failed to conceive by natural cover.

Mares for insemination with frozen semen require more frequent scanning, including throughout the night. We continue to achieve excellent conception rates with frozen semen with very frequent scanning of the mare to accurately identify time of ovulation. We therefore require that these mares stay with us for this period. Conception rates with frozen semen are known to reduce with increasing mare age. We would therefore recommend it is used only in mares aged 12 years or younger.

We offer fixed-price, per-cycle ‘packages’ which include all routine swabs, examinations and drugs and a 14 and 28 day pregnancy scan for both fresh/chilled and frozen AI. Laborarory fees, additional procedures (ie twin reduction, Caslick’s suture, uterine lavage or medication) and any additional pregnancy scans incur and additional charge. Please contact Jennifer for further information.

Please note in accordance with the Horserace Betting Levy Board Codes of Practice 2013; guidelines for Artificial Insemination we require all mares to have been tested for CEM prior to being inseminated. It may also be necessary for certain mares to be tested for EVA (i.e. mares that have previously been resident outside the UK).

It is essential if you are arranging for the delivery of semen that you ask for it to be accompanied by certification provided by the sender confirming the disease-free status of the stallion; that he has tested negative for CEM, Klebsiella pneumoniae capsule types 1, 2 and 5, Pseudomonas aeruginosa and Equine Infectious Anaemia and has either tested seronegative for Equine Viral Arteritis or has been vaccinated against EVA, in accordance with the HBLB Codes of Practice 2013. Without these documents we will be unable to inseminate your mare with the semen.

In addition, semen originating outside the UK must be accompanied by an intra-trade certificate (INTRA) and a Common Veterinary Entry Document (CVEDA).

See Horserace Betting Levy Board Codes of Practice 2013 for further information.