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World Spay Day and Pros & Cons of Dog Neutering

World Spay Day and Pros & Cons of Dog Neutering

It’s World Spay Day! Yes, actually, there really are both pros and cons to dog neutering and puppy sterilization that may surprise you. It did me. After all, we’ve heard from animal welfare advocates for years preaching the gospel of spay/neuter. Heck, I preached this myself and for the majority of dogs and cats (ESPECIALLY cats!), “the big fix” is the best thing that ever happens to them.

There’s evidence, though, that the pros and cons of dog neutering are not so black and white. While the University of Georgia’s sample of 40,139 canine death records from the Veterinary Medical Database from 1984 to 2004 concluded that neutered dogs live a year and a half longer (on average) than intact dogs, other studies point out potential increase in hip dysplasia or cancer. Oy.

Chihuahua

Dog Neutering & Puppy Sterilization

So what’s a responsible pet parent to do? Most pet lovers recognize that neutering boy puppies they don’t plan to breed or show in performance venues can be the responsible choice. Sterilization reduces several potential behavior problems, such as roaming, marking, mounting, and fighting.

Animal welfare organizations provide statistics that show over 80 percent of owned dogs in the United States are sterilized. Hurray! but what about the other 20 percent? And what about in other countries?

Veterinarian sterilization operation on dog

Veterinarian sterilization operation on a dog.

Objections to Dog Sterilization?

Is there any good reason to NOT neuter your puppy? Surgical castration permanently removes 100 percent of the dog’s testosterone, and that can cause consequences some new studies indicate may pose problems, depending on the timing and the breed.

People with puppies they hope to develop into performance dogs—hunting, herding or other athletic-intensive activities—may be reluctant to castrate their male dogs. The sexual hormones generated by the male dog’s testis give him that “male” look, and impact bone, joint and musculature development important for performance. Also, some cancers–like prostate cancer–once thought to be preventable through neutering may in fact increase in incidence. Studies indicate that large breed dogs that are neutered are at increased risk for bone and spleen cancers.

Another study of 759 Golden Retrievers at the University of California/Davis showed a doubling in the incidence of hip dysplasia in male dogs neutered before their first birthday. This early neutering also showed an increase in the occurrence of cranial cruciate ligament tear and lymphosarcoma in males and of cranial cruciate ligament tear in females. Older age sterilization was associated with the later development of mast cell tumors and hemangiosarcoma in females. Different breeds may have different results, but this information may be helpful in choosing when to time neutering your puppy.

JAVMA (the AVMA publication) shared this insightful discussion about sterilization of dogs–when it should be done, and what should be considered. The bottom line turns out–IT DEPENDS. 

But...PUPPIES are so CUTE! (sorry, not a good reason..)

But…PUPPIES are so CUTE! (sorry, not a good reason..)

Myths About Dog Neutering

Other objections are less founded in actual science and are more myths or opinions that are hard to change. There continues to be a perception that “fixed” boy dogs lose their ability to do protection work, get fat and lazy, and are less “macho.” None of these is accurate. Maturity and removal of sex hormones affect metabolism. If you don’t adjust food intake as the puppy matures, he will pack on too much “table muscle.”

Finally, in some areas around the world (including the southern states in the US), the stray or feral population can account for a significant number of unwanted dog pregnancies. Surgical sterilization of stray and feral populations is both labor and cost-prohibitive. Currently, many veterinarians say they perform pet dog and cat sterilizations at a loss, simply as a service to owners, yet the economic climate makes even these opportunities out of financial range for many people.

It’s important to learn all the facts, and figure out the best options for your individual puppy. Different breeds and lifestyles may impact your decision. So do your research, consult with your veterinarian, and ask questions. Your puppy is counting on you!

What do you think? Go ahead and comment–let ‘er rip! *s*


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