For cancers other than those three, the incidence of cancers included in the study were higher for
neutered than intact dogs.
Not exact matches
As many
dog and cat owners can attest,
neutered male animals often live longer
than their
intact counterparts.
Dogs that are spayed or neutered before six months of age ordinarily live longer than dogs that are kept int
Dogs that are spayed or
neutered before six months of age ordinarily live longer
than dogs that are kept int
dogs that are kept
intact.
For both male and female Rotties spayed or
neutered before one year of age, there was a one in four lifetime risk for bone cancer, and the sterilized animals were significantly more likely to develop the disease
than intact dogs of the same breed.
An ill - mannered
intact male
dog can be a chore to deal with day in and day out, but common sense dictates that
neutering and training are a better course
than surrendering the
dog at the shelter because he is difficult.
Intact males are more aggressive to other
dogs than neutered males.
In the study, spayed and
neutered dogs were also more likely to develop behavior disorders
than intact dogs.
A study on Golden Retrievers found that male
dogs who were neutered before 12 months of age had double the risk of hip dysplasia than their intact counterparts (Torres de la Riva G, Hart BL, Farver TB, Oberbauer AM, Messam LLM, et al. (2013) Neutering Dogs: Effects on Joint Disorders and Cancers in Golden Retriev
dogs who were
neutered before 12 months of age had double the risk of hip dysplasia
than their
intact counterparts (Torres de la Riva G, Hart BL, Farver TB, Oberbauer AM, Messam LLM, et al. (2013)
Neutering Dogs: Effects on Joint Disorders and Cancers in Golden Retriev
Dogs: Effects on Joint Disorders and Cancers in Golden Retrievers)
It might also be helpful for studies regarding joint diseases to evaluate whether or not there is a correlation between activity levels in
neutered and
intact dogs; i.e. do more
neutered dogs participate in
dog sports such as agility and flyball
than intact dogs, increasing the occurrence of joint disease?
Neutered dogs often are better behaved
than their
intact counterparts.
A retrospective study of cardiac tumors in
dogs showed that there was a 5 times greater risk of hemangiosarcoma, one of the three most common cancers in
dogs, in spayed bitches
than intact bitches and a 2.4 times greater risk of hemangiosarcoma in
neutered dogs as compared to
intact males.
However, some male
dogs never learn this behavior and
neutered dogs are more likely to squat to urinate
than intact males.
Both studies found that
neutered male
dogs have a four times higher risk of prostate cancer
than intact dogs.
Dogs who are reproductively intact (unspayed females and unneutered males) are more likely to urine mark than spayed or neutered d
Dogs who are reproductively
intact (unspayed females and unneutered males) are more likely to urine mark
than spayed or
neutered dogsdogs.
Neutered dogs tend to live longer
than intact dogs.
Spayed and
neutered dogs were at less risk for early and congenital conditions (aortic stenosis, early onset cataracts, mitral valve disease, patent ductus arteriosus, portosystemic shunt, and ventricular septal defect)
than intact dogs.
For all the conditions assessed, the congenital conditions of aortic stenosis, PDA, and ventral septal defect were the only conditions in which
intact dogs exhibited a greater prevalence
than neutered dogs.
Neutered dogs were eight times more likely to suffer from prostate transitional cell carcinoma
than intact dogs.
Their data showed that
neutered dogs were more aggressive, fearful, excitable and less trainable
than intact dogs 4.
Two studies with large numbers of pets (70,000 in one study and 200,000 in another) show that spayed and
neutered dogs and cats live significantly longer
than intact pets.
You're right that there is evidence in multiple species to suggest that testosterone can enhance existing aggressive behavior, at least in some cases — meaning we might expect an
intact male
dog to have a faster or more intense aggressive reaction to a given situation
than a
neutered one, all things being equal.
A study that evaluated boldness in
dogs found that
intact dogs of both sexes and multiple breeds are more «bold»
than neutered dogs [80] which may be associated with exploratory and wandering behavior.
Diabetes in puppies hardly exists - diabetes rarely occurs in
dogs younger
than one year of age, and it is more common in females and
neutered males
than in
intact males.
For example,
intact males constitute 80 percent of all
dogs presented to veterinary behaviorists for what formerly has been described as dominance aggression, are involved in 70 to 76 percent of reported
dog bite incidents, and are 2.6 times more likely to bite
than neutered dogs, while unspayed females «attract free - roaming males, which increases bite risk to people through increased exposure to unfamiliar
dogs,» and «contribute to the population of unwanted» and potentially aggressive
dogs (Gershman et al., 1993; Sacks et al., 2000; AVMA, 2001).
Research has shown that
dogs over 4 years old that are spayed or
neutered are considerably more likely to suffer cruciate tears
than dogs that remain sexually
intact.
Sexually mature,
intact dogs may face a greater risk of parvo
than their
neutered counterparts because un-
neutered dogs tend to roam, increasing their exposure to infectious agents.
Growth plate closure was delayed (group I vs group III; P less
than 0.000001; group II vs group III, P less
than 0.000001) in all
neutered dogs, as compared with sexually
intact dogs.
All
neutered dogs were judged to be more active (group I, P less
than 0.004)
than sexually
intact dogs.
A paper on CCL found that, across all breeds,
neutered males and females were 2 to 3 times more likely
than intact dogs to have this disorder [15].
A study utilizing the Veterinary Medical Database of over 40,000
dogs found that
neutered males and females were more likely to die of cancer
than intact dogs, especially of OSA, LSA and MCT [15].
* Unfortunately,
neutering neither prevents nor cures dominance aggression, but is recommended as part of a treatment program since
intact dogs are believed to respond more quickly when provoked, react more intensely, and behave aggressively for longer periods of time
than their
neutered counterparts.
All
dogs older
than six months and cats more
than five months old must be micro-chipped and spayed /
neutered unless owners pay an annual fee of $ 150 for an unaltered pet and obtain an
intact companion animal permit.
Neutered dogs live longer
than their
intact counterparts.
Laura J. Sanborn, MS of Rutgers University, has reviewed extensive veterinary literature on the topic and has provided sufficient proof to make leaving a
dog intact appear more beneficial
than actual
neutering.
140 sec 139) «The license fee for a spayed or
neutered dog shall be less
than the license fee of an
intact dog.»