Reproduction and desexing

The basics of desexing

Desexing is a routine procedure performed by a qualified vet. Your pet’s reproductive organs are removed so they can longer breed. In male pets it’s called castration, in females it’s known as spaying.

There are many advantages to desexing. Even if your pet doesn’t come into contact with others, we still recommend getting them desexed because:

  • Desexing prevents unwanted litters
  • Desexed pets often live longer and healthier lives
  • They’re more affectionate and less aggressive
  • Females do not display behaviours associated with heat cycles
  • They won’t scent mark their territory.

Desexing and the law

Although it is not compulsory to desex your pet under Victorian law, many local councils do have mandatory desexing policies, and we applaud them! We highly recommend desexing for the wellbeing of your pet and to reduce the population of homeless and unwanted animals in Victoria

Desexing Cats and Kittens

Desexing has a number of health benefits to for your cat and helps reduce the pressure on local pounds and shelters, so RSPCA Victoria strongly recommends desexing your cat.

Cats can start breeding at four months old, and if not desexed, one female cat and her offspring can produce up to 5,000 cats in seven years. Although cats can be desexed at any age, we recommend 8-12 weeks old as cats recover quickly at a younger age. Kittens’ smaller bodies also cannot handle pregnancy well, which is harmful for both your kitten and any offspring she may have.

A happy cat getting a chin scratch

Desexing Dogs and Puppies

A desexed dog is generally a healthier and happier pet. They will also tend to avoid health problems associated with breeding, prevents certain cancers, and can help manage behavioural issues in both male and female dogs.

The appropriate timing for desexing your dog will depend on their species, medical condition, and any local legal requirements. Your veterinarian can advise on the benefits and risks and outline the most appropriate course of action. 

Desexing Rabbits & Guinea Pigs

There are a number of benefits to desexing your pet rabbit or guinea pig, and it’s also the right thing to do to help prevent unwanted litters ending up in animal shelters looking for new homes.

Both rabbits and guinea pigs can breed prolifically, and have litters from as young as four months old. One female rabbit can have 60 babies per year, and a female guinea pigs can have up to 20!

If undesexed, both breeds risk developing reproductive health problems including cysts and tumours, cancers, urinary tract infections and, in guinea pigs, dystocia (difficulty giving birth). By having your pets desexed by an experienced veterinarian, you’ll make sure there are no unwanted litters and help keep your guinea pigs healthy.

Two guinea pigs keeping warm

The cost of desexing

The cost of desexing procedures can vary from clinic to clinic, and there are some low-cost desexing programs available. All pets available for adoption from RSPCA Victoria are desexed, which is included in the adoption fee.

Community benefits of desexing pets

You’ve heard about all the benefits that desexing can have for your own animals, but what about the other creatures that are beyond our backyard?

Reduced aggression and a decreased urge to roam means that our native wildlife species are at less risk of predation and more likely to prosper than end up in the claws of our pets. Caring for all creatures great and small – it’s something we can all get behind.

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