PROCEDURE
Consider the following when deciding whether to euthanize your horse:
Diagnosis & Treatment Options. Talk to your vet about the nature of the injury or illness as well all treatment options available. Ensure that you fully understand the disease process and what can be done to lessen or fully resolve the problem, and why euthanasia is being considered.
Prognosis & Future Quality of Life. Talk to your vet about your horse's prognosis, associated with all treatment options available. What will your horse's quality of life be like should you proceed with treatment? What are the chances they will be able to return to work or performance?
Pain & Pain Management. Talk to your vet about the level of pain that your horse is currently experiencing and may experience in the future, as well as all options for pain management.
Finances & Insurance. You need to be honest with yourself and your vet regarding your financial ability to continue treatment or choose surgery. Likewise, if your horse is insured you should contact the insurance company before making this decision.
TIPS FOR SAFETY AND SUCCESS
Depending on the circumstances, it may be possible for you to take a bit of time to make this decision. Talk to your close friends and, if appropriate, seek out a second opinion from another vet.
In my years in practice, I have had many horse owners request hair from the horse's mane and tail as a remembrance.