Virbac New Zealand

Health Care

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Chemical castration for male dogs

The dog can be temporarily castrated with a simple implant

Your vet places a resorbable implant between the dog’s shoulder blades, just as they would do for an electronic chip.

After the implant has been placed, an active ingredient is released at a constant rate, preventing the production of the hormones necessary for the formation of testosterone and other sex hormones for over six months. After a few weeks, hormone levels drop to a baseline, just like after a surgical castration, resulting in decreased sexual behaviours. You must wait several weeks after the implant has been placed for the dog to be sterile.

The male dog can be surgically castrated – but this is permanent

On the day of surgery, the dog needs to be fasted as the castration is done under general anaesthesia. The procedure consists in removing both testicles. For this, an opening must be made, a little behind the penis. It is then closed with stitches. Healing requires a dozen days on average. The dog’s reproductive capacity is then permanently removed.

Why sterilise your male dog ?
  • Medical reasons
    Unsterilised dogs can, with age, develop various diseases such testicular tumours, perianal gland tumour and prostate disease. Castration, chemical or surgical, will greatly reduce the severity and the risk of these diseases.
  • Prevention of unwanted litters
    Especially when a male and female dog live in the same household, it may be necessary to consider castration to avoid unwanted puppies.
  • Behavioural problems
    Some male dog behaviours such as: excessive libido, urinary marking and running away may be undesirable to the owner. Castration can help to reduce or to eliminate them.

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