Here is the Article Roxylola,
By Dr. Becker
A recent study raises even more questions about traditional spay/neuter practices for U.S. dogs.
The study, titled "Evaluation of the risk and age of onset of cancer and behavioral disorders in gonadectomized Vizslas,"1 was conducted by a team of researchers with support from the Vizsla Club of America Welfare Foundation. It was published in the February 1, 2014 issue of the Journal of the American Veterinary Medical Association.
Like previous research on Rottweilers and Golden Retrievers, the results of the Vizsla study are a call to action to take a closer look at current neutering recommendations.
Vizsla Study Results
The Vizsla study involved 2,505 dogs, and reported these results:
Dogs neutered or spayed at any age were at significantly increased risk for developing mast cell cancer, lymphoma, all other cancers, all cancers combined, and fear of storms, compared with intact dogs.
Females spayed at 12 months or younger, and both genders neutered or spayed at over 12 months had significantly increased odds of developing hemangiosarcoma, compared with intact dogs.
Dogs of both genders neutered or spayed at 6 months or younger had significantly increased odds of developing a behavioral disorder, including separation anxiety, noise phobia, timidity, excitability, submissive urination, aggression, hyperactivity, and/or fear biting. When it came to thunderstorm phobia, all neutered or spayed Vizslas were at greater risk than intact Vizslas, regardless of age at neutering.
The younger the age at neutering, the earlier the age at diagnosis with mast cell cancer, cancers other than mast cell, hemangiosarcoma, lymphoma, all cancers combined, a behavioral disorder, or fear of storms.
Compared to intact dogs, neutered and spayed dogs had a 3.5 times higher risk of developing mast cell cancer, regardless of what age they were neutered.
Spayed females had nine times higher incidence of hemangiosarcoma compared to intact females, regardless of when spaying was performed, however, no difference in incidence of this type of cancer was found for neutered vs. intact males.
Neutered and spayed dogs had 4.3 times higher incidence of lymphoma (lymphosarcoma), regardless of age at time of neutering.
Neutered and spayed dogs had five times higher incidence of other types of cancer, regardless of age of neutering.
Spayed females had 6.5 times higher incidence of all cancers combined compared to intact females, and neutered males had 3.6 times higher incidence than intact males.
Vizsla Researchers Conclude More Studies Are Needed on the Biological Effects of Spaying and Neutering, and Also on Methods of Sterilization That Do Not Involve Removal of the Gonads.
The Vizsla researchers concluded that:
"Additional studies are needed on the biological effects of removing gonadal hormones and on methods to render dogs infertile that do not involve gonadectomy. Veterinarians should discuss the benefits and possible adverse effects of gonadectomy with clients, giving consideration to the breed of dog, the owner's circumstances, and the anticipated use of the dog."
(The full Vizsla study can be downloaded here.)
I absolutely agree with the researchers' conclusion that studies are needed on alternative methods of sterilizing dogs that do not involve removing the gonads. As I explained in an earlier video, over the years I've changed my view on spaying and neutering dogs, based not just on research like Vizsla study, but also on the health challenges faced by so many of my canine patients after I spayed or neutered them. These were primarily irreversible metabolic diseases that appeared within a few years of a dog's surgery.
My current approach is far removed from the view I held in my early days as a vet, when I felt it was my duty and obligation to spay and neuter every dog at a young age. Nowadays, I work with each individual pet owner to make decisions that will provide the most health benefits for the dog.
Whenever possible, I prefer to leave dogs intact. However, this approach requires a highly responsible pet guardian who is fully committed to and capable of preventing the dog from mating (unless the owner is a responsible breeder and that's the goal).
My second choice is to sterilize without desexing. This means performing a procedure that will prevent pregnancy while sparing the testes or ovaries so that they continue to produce hormones essential for the dog's health and well-being. This typically involves a vasectomy for male dogs, and either a tubal ligation or modified spay for females. The modified spay removes the uterus while preserving the hormone-producing ovaries.
The cases in which I opt for a full spay or neuter usually involve an older dog who has developed a condition that is best resolved by the surgery, for example, pyometra (a uterine disease in female dogs), or moderate to severe benign prostatic hyperplasia (an enlarged prostate in male dogs) that is impeding urination and/or causing the animal discomfort. Generally speaking, mature intact dogs have had the benefit of a lifetime of sex hormone production, so the endocrine imbalances we see with spayed or neutered puppies don't occur when dogs are desexed in their later years.
A Word About the Problem of Homeless Pets and Spaying/Neutering
It's important to understand that I'm not advocating the adoption of intact shelter animals to people who may or may not be responsible pet owners. Shelter veterinarians don't have the time or resources available to build a relationship with every adoptive family, so all the animals in their care must be sterilized prior to adoption to prevent more litters of unwanted pets.
Would I prefer that shelter vets sterilize rather than desex homeless pets, so that those animals, too, retain their sex hormones? Absolutely I would. But for the time being, the U.S. shelter system isn't up to that particular challenge, nor are DVMs in this country routinely trained in how to perform anything other than full spays and neuters.
So while I totally agree with the need to sterilize shelter pets, I don't necessarily agree with the method of sterilization being used.
By MamaBas
Date 18.06.14 08:43 UTC
Edited 18.06.14 08:47 UTC

I too only skin-read this information. However, from experience with my hounds (since 1972) I will still favour spaying on retirement, if only to avoid the need to confine twice (8 months usually in the case of mine) a year. I had one that developed mammary cancer when she was 12 - she'd been spayed at 6. Of course there's always the 'could it have happened in any case'. I prefer not to spay as a baby - regardless of what's said, it's still invasive surgery and to do that with a puppy of under 5 months doesn't sit right with me. With my Bassets, apart from one who by aged 2 it was clear she wasn't really good enough to show, never mind take a litter from, plus she started cycling at 5 monthly intervals so she was spayed earlier, all were done later on - and we did only have the one with a female cancer.
With my males I had NONE with a male-related cancer and with the exception of a couple who were castrated, with prostate problems, not cancer again, in later life. With those exceptions they were all entire to the day they died.
My vet didn't want to spay my Whippet at 6 months when I took her in to be done, citing the potential for bone problems, and also spay incontinence. I waited for her first season which by 11 months, showed no sign of starting so I asked him to go ahead. He did, and at 5.5 years now, she's absolutely fine.
Studies are always interesting, but just as with research on human matters, there are often as many pros, as cons put forward - so I'd not ignore, but in this case, stick to what's tried and tested, with mine.
By Tish
Date 18.07.14 17:55 UTC

Thank you all for your valued advice.
Marianne she was saying mammary cancer (sorry if the terminology is wrong). I explained that i really don't have an issue doing the procedure but want to look at the best age for her.
New York
I wasn't going to mention money but funnily enough when i said i had a couple of other things i wanted to discuss- feeding, teeth cleaning and eye care she refused to discuss these saying do you want a consultation if you need a consultation we will have to charge you as she is only here for a weight check and advocate dispense. I didn't even realise that I wasn't being charged as every month it has been a minimum 50.00. (Last month 150.00) i agreed as i don't have a problem paying for their expertise and time.
When i expressed an interest on feeding raw as i feel it is unhealthy the way she inhales her kibble but takes her time with raw bits i have tried her on. She also said i want her on a complete commercial food. Which in her defence i understand as it is supposed to meet all their requirements. I personally wanted some advice on feeding a flat faced breed bones as I have read that can be problematic due to the propensity for an elongated soft palate.
I am considering returning to my previous vet - he is over an hour away now i have moved but i think he is worth it.
Boo 16
Thank you for the article i will read with interest.
In closing what would be my argument to leave her until later or should i just stand my ground and say no. I thought it could have an effect on their temperament / behaviour but she refuted this.
Tish x
By Admin (Administrator)
Date 19.07.14 07:19 UTC
Edited 19.07.14 07:21 UTC
>once again the main issue for the vet was when can they book her in for a spay as i haven't confirmed a date. (Although they are looking at 6 months of age to do it)
My 12 year old bitch recently had a mammary tumour removed. The first thing the vet asked me was when she was spayed. I stated that had been done just before she was two and after her first season but just before her second. He said "shame, if you had had her done at 6 months she would have been ok"! I challenged him about this and pointed out that 12 years ago, the veterinary advice had been to do it before 2 years of age! He confirmed that that 6 months is the advice now. That may be the 'new advice', but it isn't something I would even consider.
>I was at the vets this morning for monthly puppy check
My elderly mum has a young dog and in conversation with her, she said she was off to the vets for his monthly check! I asked her what she meant and she told me Oliver has to see a vet monthly to see how he is growing and if he needs treatment for anything (ears, fleas, worms, skin,weight etc)! She was struggling to get him to the vets every month but because the vet had said,she thought she MUST do it. I told her that was ludicrous and to knock that on the head as soon as she like. She said she told the vet that she would not be coming monthly anymore and that she would bring the dog for his yearly boosters or if he was ill. The vet was not happy, but mum said their attitude changed towards her once she stood her ground.
By Tish
Date 19.07.14 09:33 UTC

After a nights sleep i have decided i am going back to my previous vet. I feel you have all given me sound advice and thank you all again. With his small practice the pet stays with the same vet throughout, unless there is absence etc. even then they would let you know "i am away next week ". I think this lets you and the dog build a relationship with them. When i lost my last dog they were so wonderful and even now i am still in contact with them. He gave a reference to the breeder. They were genuinely thrilled when I said i was looking for a new puppy but never once pressured me to taking her there.
Whilst money is not an issue for me my old vet raised this with me only once when the cost of her meds was 150.00 a month. Other than that he left it to the practice manager. He was more concerned with getting the dog well. You often find him in the waiting room with a load of dogs greeting him enthusiastically.
I think you are correct about the chain as they gave me a fridge magnet with Mayhew on it. I went there as they did puppy socialisation but didn't go back after the first as it was a free for all and my trainer at class said to be mindful it can create behaviour you don't particularly want.
I am still not sure what age i will get her done but have a bit of time to continue reading up on it. Surely they must realise it is more convenient for the owner to not have to deal with seasons (especially a newbie like me). But what I want is not to damage her physically or otherwise. The incontinence issue i had read about but didn't realise it meant medication for life!
My trainer spoke to me about the raw and recommended a brand called Honey's. I am going to do a bit more reading and am hoping the breed club will be able to advise. I would rather prep it myself but it is the bone i am unsure of. I am friendly with a dog walker who specialises in bracchycephalics so she can probably help too.
>if you had had her done at 6 months she would have been ok
That has been found not to be proven, and the study that suggested it was too small etc.
Some bitches and families are inclined to get mammary tumours and some not.
Half of them are benign anyway.
Of 10 bitches owned now that are over 2 years of age, and older ones spayed between 5 and 7 years I have experienced one bitch with a single pea size lump. Having spoken to people in my breed my experience is consistent with theirs very few entire bitches with mammary tumours.
A friend in Welsh Springers expected all her older bitches to need mammary strips.
the main plus point health wise for spaying is the protection from Pyometra which mainly affects middle age to old bitches.
I suggest this study of the pros and cons is printed off and shown to vets who perist on pushing.
http://www.naiaonline.org/pdfs/LongTermHealthEffectsOfSpayNeuterInDogs.pdf
By MamaBas
Date 19.07.14 10:06 UTC
Edited 19.07.14 10:09 UTC

Fact is neutering is a 'nice little earner' for most vets. Call that the cynic in me but ............... If I find a vet who is pushing this, I move on! However, not all vets are like this - eg. I bought a Whippet puppy at 9 weeks. At that time I had an elderly entire male Basset who was fighting oral cancer at the time and the last thing he needed was to be anywhere near a bitch in season (even if she'd had been at the opposite end of the bungalow!!). So as she approached 6 months, I took her in to book her spay. Shock (mainly because this was the first one I'd ever had done that early - in our small show/breeding outfit our girls were usually spayed on retirement) - he advised me to let her have one season first, citing bone growth problems and the possibility of spay incontinence if he did it before her first season. So I backed off, and arranged for a local boarding kennel to take her when she did come in - to get her right out of here. I wasn't happy to have to do this, but for the sake of my old boy ..... and they were going to have her in a crate in their kitchen.
As it happened, she'd not come in by 11 months, and no sign of it either, so I took her back and asked him to go ahead. He did, and now at 5.5 years, she's absolutely fine.
All this risk of mammary, ovarian or uterine cancers later on is relevant, and worth bearing in mind - indeed one of our Basset girls, spayed on retirement, did develop mammary cancer at the end (12 years), something I'd not wanted for my worst enemy. But it is just a risk and who knows whether her late spaying was involved in all this (and it was only one of all my bitches over the years, who developed this)....... my main reason for spaying was to lessen the angst with them coming in all the time, having to confine them etc., which was pointless when past breeding/showing.
I suppose vets probably should make the suggestion - but THAT'S ALL!!! Again I have to suspect this is mainly about income for the practice. Bottom line - it's YOUR DECISION, based on all the information there is available.
By Tish
Date 19.07.14 16:44 UTC

In my mind i have Goldmalis recommended 18 months as the age i am looking at. Due to her experience with smaller breeds.
I recall the vet said if i let her have more than a couple of seasons the risks increase to the point whereby the benefits are non-existent.
However having read the articles posted by Boo16, Brainless and of course the original one i looked at it is very much pros and cons - cons being growth plates, incontinence, hypothyroidism etc etc.
Anyway my Mum always said vote with your feet and that is what i will be doing - straight back to my previous vets!
I think Toolz, Mamabas and Admin have a point about the marketing/sales - I should have ignored the flashy website aren't we lovely facebook page and stuck with a vet who has neither the time nor the need to pimp himself like this.
Thanks CD i was in a right state yesterday - you gave me facts and figures plus your experience which in my book are all priceless.
Tishxxx