Myths and facts
There are many myths about canine reproductive needs. Chiefly among these are the suspicion that neutering turns a male into a sissy and spaying causes a female to get fat and to lament her lost capacity.
The truth is that male dogs, especially those with a submissive personality, are usually better pets if they are neutered. They may have less desire to roam, to mark territory (including furniture), and, if neutered before sexual maturity, they may be less likely to exert dominance over family members. They may also be healthier pets: no testicles means no testicular cancer.
A word of caution, however. Neutering a dog reduces production of testosterone but does not eliminate this hormone. Thus a neutered dog, especially if he has a dominant character, may also retain his desire to roam and an assertive or even aggressive personality. Owners who depend on neutering to resolve behavior problems run a high risk of being disappointed unless they also train the pet to have good manners at home and in public.
Females also tend to be better pets if they do not experience oestrus every six-to-nine months. Heat cycles bring hormonal changes that can lead to personality changes, and oestrus females must be confined to prevent unwanted pregnancies. Repeated heat cycles may subject the reproductive system to uterine and mammary cancers as they age. Some bitches experience false pregnancies that can be a bother to deal with and uterine infections that can be fatal.
While the hormone changes caused by sterilization can contribute to overweight, dogs and bitches do not generally get fat simply as a result of spay or neuter surgery. Like other mammals, they gain weight if they eat too much and exercise too little or are genetically programmed to be hefty. Weight gain that follows sterilization surgery may be linked to those hormone changes but will be aggravated by continuing to feed a high energy diet to a dog that is reducing the need for energy as he reaches his adult size. Excess energy in the food becomes excess fat on the body.
As far as we know, dogs do not lament their lost capability to reproduce. This is a different species than ours; they reproduce to ensure survival of their kind, not to nurture a pup for 18 years, watch it go off to college, marry, establish a career, and produce grandchildren. Bitches nurse their pups for a few weeks, teach them to behave like dogs, and go on. Males know nothing of fatherhood; they do not recognize pups as their own.
There are many myths about canine reproductive needs. Chiefly among these are the suspicion that neutering turns a male into a sissy and spaying causes a female to get fat and to lament her lost capacity.
The truth is that male dogs, especially those with a submissive personality, are usually better pets if they are neutered. They may have less desire to roam, to mark territory (including furniture), and, if neutered before sexual maturity, they may be less likely to exert dominance over family members. They may also be healthier pets: no testicles means no testicular cancer.
A word of caution, however. Neutering a dog reduces production of testosterone but does not eliminate this hormone. Thus a neutered dog, especially if he has a dominant character, may also retain his desire to roam and an assertive or even aggressive personality. Owners who depend on neutering to resolve behavior problems run a high risk of being disappointed unless they also train the pet to have good manners at home and in public.
Females also tend to be better pets if they do not experience oestrus every six-to-nine months. Heat cycles bring hormonal changes that can lead to personality changes, and oestrus females must be confined to prevent unwanted pregnancies. Repeated heat cycles may subject the reproductive system to uterine and mammary cancers as they age. Some bitches experience false pregnancies that can be a bother to deal with and uterine infections that can be fatal.
While the hormone changes caused by sterilization can contribute to overweight, dogs and bitches do not generally get fat simply as a result of spay or neuter surgery. Like other mammals, they gain weight if they eat too much and exercise too little or are genetically programmed to be hefty. Weight gain that follows sterilization surgery may be linked to those hormone changes but will be aggravated by continuing to feed a high energy diet to a dog that is reducing the need for energy as he reaches his adult size. Excess energy in the food becomes excess fat on the body.
As far as we know, dogs do not lament their lost capability to reproduce. This is a different species than ours; they reproduce to ensure survival of their kind, not to nurture a pup for 18 years, watch it go off to college, marry, establish a career, and produce grandchildren. Bitches nurse their pups for a few weeks, teach them to behave like dogs, and go on. Males know nothing of fatherhood; they do not recognize pups as their own.
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