My opinion - later in life
My opinion is that you should fix the animal AFTER the first heat or first litter. (First litter ONLY if intentional for breeding). The 6 months rule should correlate with the first heat anyways. For male dogs fixing should be done after the testicles have "dropped".
I say this from experience. My cat got "fixed" at around 3 months. It was the BIGGEST mistake! Her mentality is a little "immature" and never seemed to become a full adult. She is over 10 years old! Her physical status has been the worse effect. Everyone has commented that she is a "fat cat". However, she is NOT fat in any shape or form. Her "breasts" fell down and it is a lump of droopy skin! A fat cat's skin is taught well hers is extremely loose.
I've noticed other animals that have gotten fixed too early and they have "maturity" issues. That's just my opinion. My next time getting my animals fixed I will wait. I am just NOT comfortable with the trend of fixing animals early. I do see the point of it. There are too many unfixed animals without responsible owners. This provides a "protection" from encouraging more unwanted animals from neglectful owners.
Talk to a few vets and decide what is best for your animal. This is just MY Opinion. Please make your own. ;)
yes but worth the long term damage?
Yes, fixing your animal BEFORE it's first heat may reduce the chances of getting many different types of diseases. However, those diseases may be treatable in the short term. Fixing the animal later falls more into the "long term" care of an animal.
Fixing an animal later, allows them to experience some "sexual maturity". The horomone changes and bodily characteristics that come from this "change" are more important in my eyes. It allows the animal to mature properly and get rid of some of their "bad habits".
For example: What if you were "fixed" at age 13. A woman who never got a period or a boy who never got "stimulated" (Sorry folks :o ). Would your maturity level change who you are today? A woman never developing breasts and boy's voices NOT change?
That essentially is what is happening to our animals when we don't allow them to formally go through "Puberty". They may never get "breast cancer" but are they ever going to mature, calm, cool and collective? What would you rather have?
Ps. All my animals are fixed. One too early, the dogs just right, and the ferret already done. The one too early still has issues to this day 15 years later.
It's amazing a Vet authored that article...
If you have a large breed dog, and all you care about is how well it's going to perform as a canine athletic then maybe the point made about the bone structure would cause one to never spay the dog. I say maybe because the article is full of inaccuracies and should not be used by the common dog owner as a guide to spaying. Maybe because they left out an article originally published in 1975 that indicated low estrogen level was associated with hip dysplasia, and measurements could be made as early as 8 weeks as a predictor as to which pups where most likely to develop joint problems. Long before the issue of spaying occurs.
A female dog spayed before her first heat has close to a 0.5% change of mammary cancer. It's almost unheard of in spayed females. A female dog allowed to go into its first heat has a 7-8% of developing mammary cancer later in life. After the 2nd and subsequent heats, and/or pregnancy then the odds are 25%, and do not increase further. In fact mammary cancer accounts for 25-50% of the cancers found for intact dogs.
Although the statement that 50% are benign is true, the statement:
those that are malignant don't metastasize very often, particularly in these days when there is early identification and removal of lumps found on our dogs
is irresponsible! Approximately 50% to 75% of malignant mammary tumors will kill the dog by recurrence through metastasis within one to two years.
Neither does the statement:
bone cancer...a cancer that is much more life-threatening than mammary cancer, and which affects both genders
make much sense. Osteosarcoma has a lower incidence than mammary cancer. And once a cancer has undergone metastasis it matters not whether it's mammary or osteosarcoma- in either case it will be life threatening. Also note a dog owner is more likely to note a limping dog and get medical attention for it (i.e. amputation before metastasis is usually a cure for Osteosarcoma), than to by chance alone find a small cancerous lump, and wonder how long it has been there.
It really does come down to whether or not you wish to minimize the chances your female dog will get mammary cancer?
In general for small breed dogs they are going to have their first heat sooner than the larger breed dogs. Thus 5 months is usually the target age. For larger breeds 6 months and certainly no later than 9 months which is pushing it. Per incontinence that could be a problem if you had your dog spayed very early (e.g. 3 months- which my Vet suggested and I ignored because of this reason). But once it nears the time of its first heat the surrounding tissue and structure is developed enough to maintain good muscle control on the urethra.
Both of my female dogs 80 lbs spayed at 9 months, and 74 lbs spayed at 6 months was/is active, without bone, or incontinence problems. In fact the one I have now runs like a deer. Needless to say the incidence of mammary cancer has been zero percent. Does spaying cause snoring? ;)
Hint: A dog does not have to experience a heat in order to enjoy its life. My first female dog had a joy for life I had not seen before or since in dogs or people. Neither did she had any bad habits. That's right- the perfect dog. Something my second female has evened the score on. :eek: