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Correct age to neuter

barn63 Sep 28, 2006 03:45 PM

I was at my local dog park the other day and a gentleman with another doberman told me he read that it is better to wait until my dog is a year old to neuter him. He mentioned that it helps with the development of the dogs rib cage or something like that. What is the right age to have it done.

Replies (9)

barn63 Sep 28, 2006 10:48 PM

Sorry I didn't introduce myself. I am Brian and I am from Illinois. I have a 5 month old male Doberman Pinscher. He is Black and tan. I will post pictures here shortly.

KDiamondDavis Sep 29, 2006 03:43 PM

>>I was at my local dog park the other day and a gentleman with another doberman told me he read that it is better to wait until my dog is a year old to neuter him. He mentioned that it helps with the development of the dogs rib cage or something like that. What is the right age to have it done.

>>>>>>>>

The correct age to neuter depends on the dog's temperament and health as well as the handler's facilities and skill. Six months is generally recommended. I wouldn't wait past fourteen months.
-----
Kathy Diamond Davis, author, "Therapy Dogs: Training Your Dog to Reach Others," 2nd edition, and the free Canine Behavior Series articles at http://www.veterinarypartner.com/Content.plx?P=SRC&S=1&SourceID=47

Thai Oct 06, 2006 06:57 AM

No it doesn't depend on the temperment of the dogs. DO NOT NEUTER HIM UNTIL AT THE VERY LEAST 1 YEAR.

I cannot stress this enough!

They need the hormones to grow properly and proportionally.

This is a fact.

I've seen dobermans that have been neutered at 6 months and it's night and day how unproportional and odd looking they've become. Go look, research and see for yourself.

Also, why do you feel the need to snip him anyways? Don't do it because the vets and media pressure you to. Do it only if he ends up becoming dangerously aggressive - which he won't as long as you give him plenty of exercise.

And being neutered greatly increases his chances of getting cancer. Yes, that too is a fact. Don't forget, vets make money off of each and every visit and procedure they can sell you. It's a money business for them. So try as hard as you can to brush off their pressure sales techniques when you are at the vet.

And once again, DON'T NETEUR HIM AT 6 MONTHS.

swiftK9s Oct 07, 2006 09:08 AM

thai wrote: "...And being neutered greatly increases his chances of getting cancer. Yes, that too is a fact...."

I have googled this subject trying to find the facts and I haven't been able to find anything yet. Can you tell me some of the types of cancer that neutering can cause? I would be interested to see.
Thank you in advance.

Thai Oct 08, 2006 11:55 PM
Thai Oct 09, 2006 12:02 AM

Can We Neuter Cancer in Dogs?
Kevin Hahn, HVM, Ph.D., Dipl. ACVIM
Director of Oncology Services – Gulf Coast Veterinary Oncology

I spent this past month reviewing studies reported over the past 30 years regarding the role of hormones and cancer in dogs.

Do neutering and spaying increase or decrease the risk of cancer?
Do the procedures alter the prognosis once a pet develops cancer? How do hormones cause or prevent cancer?

Uncertainty Factor I'm still not sure what to recommend to my clients.

There are reports showing that spayed females have four-time greater risk for developing cardiac hemangiosarcomas compared to intact females. Neutered males also show a significant increase in risk for these tumors compared to intact males.

Many of us are familiar with the data that show that female dogs
spayed before the first heat cycle have half the risk of mammary
carcinoma of those spayed after the first cycle but before the second heat cycle. Dogs spayed after the fifth heat cycle, or never spayed, have the highest risk.

Testicular carcinomas in dogs are common, but neutering eliminates
that risk.

But prostate cancer is actually more common in castrated dogs then intact ones. Prostate cancer in dogs is hormonally independent and castrated dogs have up to a four-time greater risk of developing prostate cancer then intact dogs.

Neutered or spayed dogs have a one-half to threefold higher risk for developing bladder tumors and twice the risk of developing
osteosarcoma as compared to intact dogs.

In on study, males were four times more likely then females to die
within two years of diagnosis. Male and female dogs that underwent
gonadectomy before 1 year of age had an approximate one in four
lifetime risk for osteosarcoma and were significantly more likely to develop a tumor then dogs that were sexually intact.

Hormones' Role in Cancer
The possible mechanism by which gonadal hormone exposure might protect against or cause the development of tumors in both males and females is not known.

Endogenous sex steroids such as estrogen and testosterone may serve as prodifferentiation agents that inhibit the malignant transformation of cells.

Alternatively, gonadectomized female and male dogs live longer then sexually intact dogs, which might be expected to contribute to a higher overall cancer incidence associated with gonadectomy reported by others.

There are substantial and convincing bodies of experimental, clinical and epidemilogic evidence indicating that hormones play a major role in the etiology of many cancers.

The underlying mechanism proposed is that neoplasia is the consequence of prolonged hormonal stimulation of the particular target organ, the normal growth and function of which is controlled by one or more steroid or polypeptide hormones.

Genetic Controls
Evidence is mounting to show that the amount of hormone to which a
tissue is effectively exposed is under strong genetic control.

Therefore, in addition to external factors such as diet or exogenous hormone use, which may modify hormone profiles, polymorphisms in genes encoding proteins involved in steroid-hormone biosynthesis, metabolism or extra- and intracellular transport and DNA binding are important
determinants of individual cancer risk.

The major carcinogenic consequence of this hormonal exposure and the end organ is cellular proliferation.

The emergence of a malignant phenotype depends on a series of somatic mutations that occur during cell division, but the entire sequence of genes involved in progression from normal cell to a particular malignant phenotype are not known.

Candidate genes include those in the endocrine pathway as well as DNA repair genes, tumor suppressor genes and oncogenes.

One explanation of why hormones may initiate cancer but then the
cancer progresses in a hormone-independent environment is discussed in the June issue of Nature Medicine.

Dr. David Feldman found that, because of a mutation, the stress
hormones cortisone and cortisol can trigger the growth of later-stage cancer cells. Feldman and colleagues report that an androgen-receptor gene in metastatic cancer cells contains two mutations that transform its activity.

Androgens are no longer bound tightly to the receptor. Instead,
cortisol and cortisone bind and act like pseudo-androgens, activating the same metabolic pathways that androgens normally would trigger.

This means that cancer cells are deluged with signals to divide, which could account for their rapid multiplication in high-grade metastatic or later-stage cancers.

So do we neuter dogs at an early age to prevent breast and testicular cancer but place them at risk for hemangiosarcomas, osteosarcoma, bladder or prostate cancer?

Do we monitor cortisol levels in dogs with cancer and attempt to
reduce these levels in order to improve prognosis?

Unfortunately the answers are not known, but are close at hand.

With the development of the canine genome map, investigators are able to identify loci that predispose dogs to cancer.

My hope is that this will lead to an understanding of gene regulation and the role of hormones in cancer initiation and promotion. Then, and only then, will we know when it is time to neuter cancer.

Kevin Hahn, HVM, Ph.D., Dipl. ACVIM
Director of Oncology Services – Gulf Coast Veterinary Oncology

swiftK9s Oct 09, 2006 06:53 PM

Thai.. thank you for the link and article. I see I have a lot more reading to do on the subject, as it will take a lot to convince me that neutering causes cancer. I have to wonder were all of the neutered/intact males fed the exact same food, given the exact same vaccines, raised in the same enviroment. I don't know enough on the subject to debate the topic, so I will just read, research and read some more. Thanks again.
Cathy

barn63 Oct 11, 2006 12:47 PM

So where can I find information on how neutering a dog at 6 months differs from 1 year?

po Dec 24, 2006 01:14 PM

this is a quote from the post below

"Alternatively, gonadectomized female and male dogs live longer then sexually intact dogs, which might be expected to contribute to a higher overall cancer incidence associated with gonadectomy reported by others. "
the animals LIVE LONGER and with age comes cancer, and plenty of cancers can be removed and treated, and your pet will be with you longer!

i am a vet tech and we usually spay/neuter @ about 6 months, it keeps down aggression, marking, and wandering off to find a mate, and the biggest problem animals face OVERPOPULATION!!!
so many animals die each day because of overpopulation, good animals who could have been loved by someone but never get the chance because there are just to many, and purebred dogs are included in the numbers that die...

as for the vet making $$ from your spay/neuter its not all that true, i work @ a 7 vet practice, and they arnt rich, its not like human MD's. they have student loans to pay off, and the owners of the practice have to pay all the rest of the staff, and ill tell ya now, we all joke that no ones in it for the $ were there for the animals. one of the vets i work with lives in an appartment, yeah he has a new car, ut its a ford focus, not a BMW. most of the $ vets used to make was on vaccines, but now that we are giving less and less vaccines, the vets are making less then in years past.

if you want to wait till hes a little older to get a thicker body structure fine, but when he lifts his leg on everything at the vet, be nice and YOU clean it up!

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