Dexter, a new dachshund patient of mine, was in last week for another round of puppy shots. He will soon be six months old and it was time for me to discuss the next step in his preventive health care plan: neutering.
Neutering meets the guidelines
The American Veterinary Medical Association has developed guidelines for responsible pet ownership. One of the guidelines obligates pet owners to control their pet’s reproduction through spaying and neutering; subsequently helping to control pet overpopulation in their community. Neutering is the common term for castration of a male dog or cat and spaying refers to removal of the ovaries and uterus, or in some cases just the uterus or ovaries, of a female pet.
Pet overpopulation is a serious issue in the United States today. According to the Humane Society of the United States, over four million unwanted pets are destroyed annually. For every puppy or kitten prevented by neutering an adult pet, there is one less homeless and unwanted puppy or kitten euthanized in an animal shelter.
The traditional surgery
Surgical removal of the testicles is the current standard of care for neutering in both dogs and cats. This surgery renders a male dog or cat unable to reproduce and also removes the major source of the male hormone, testosterone. Removing the source of testosterone eliminates mating behavior in males and also plays a role in eliminating other unwanted behaviors. In both the dog and cat, neutering involves a small skin incision through which the testicles are removed. Cats typically go home the same day, but dogs may stay overnight to recover from anesthesia and for incisional monitoring.
A new method
The New York Times Well Blog recently reported on a new method of non-surgical, chemical castration, called Zeuterin. Zeuterin neutering uses zinc gluconate and arginine injected into a dog’s testicles as a less invasive method of castration. Dogs still produce a small amount of testosterone, but are unable to sire a litter of puppies. Veterinarians must be trained to use the Zeuterin method of neutering, but especially for shelters and rescue groups, the method has great appeal.
Dexter’s owners were concerned about the surgery. They asked if he could just have a vasectomy instead of the traditional neutering surgery. Because my job is to make the best medical recommendations for the specific health concerns of each of one my patients, I recommended the traditional surgery for Dexter. It provides him with the greatest number of health benefits. The surgery prevents unwanted litters of puppies and also prevents prostatic disease, testosterone-induced tumors and behaviors linked to testosterone production. Because a vasectomy or Zeuterin neutering are methods of birth control only, they do not offer the added advantage of decreased levels of testosterone on behavior and disease.