Page 909 - The Veterinary Care of the Horse

• the risks associated with a general anaesthetic are avoided.

VetBooks.ir The disadvantages of this method are:

•
the operation can be difficult in small ponies with tiny testicles
• there is the risk that the vet will be kicked
• there is also a higher risk of post-operative complications.

Castration under general anaesthesia is more expensive but is safer and easier for the vet. It
can be carried out using the ‘open’ surgical technique as used for standing castrations; this

has the advantage of requiring only a short anaesthetic. Alternatively the operation can be
performed in a ‘closed’ fashion which avoids cutting the tough sheet of tissue surrounding

the testicle and entering the body cavity. This method is safer as it prevents the possibility of
intestinal prolapse following the surgery. Healing tends to be quicker and less aftercare is
necessary. It also carries a reduced risk of post-operative problems such as infection and

excessive swelling. However, it takes longer and therefore is usually performed at an equine
veterinary clinic with proper operating facilities.

If only one testicle has descended or other problems are suspected, the operation will be
carried out under general anaesthesia. It is often recommended that stallions over the age of

three years are gelded by the closed method under general anaesthesia.

THE OPERATION
• The vet will wash the area thoroughly with an antiseptic solution.

• The scrotum is incised. Emasculators are used to remove the testicles and crush the cord.

• In the open technique performed on the standing horse, the scrotum is left open to allow
drainage and prevent excessive swelling.

• In the closed technique the cord is ligated (tied off) and the scrotal incision is closed.

MEDICATION

• Non-steroidal anti-inflammatory dugs are normally prescribed to reduce the pain and
inflammation.

• Protection against tetanus is essential.

• Antibiotics are usually given when horses are castrated using the open, standing
technique or if any complications have been experienced during the surgery. They are not

usually necessary if the horse has been castrated under general anaesthesia in an
operating theatre.