Just a note from the author to let you know that a new edition has been produced, published in January 2003 and is now available. The new edition is based on the format of the first edition but has been changed considerably in places to reflect new research and knowledge.

Many people have told me that the old edition is an excellent teaching book for degree students and reference book for practionners and Veterinary surgeons - I am very grateful for their encouraging comments. I hope that this new edition will proove to be just as valuable.

Please note I have also written a more specialist book entitled Equine AI and published by the same publishers CABI.