It would not be recommended for a brother and sister to mate, since there is a higher risk of genetic problems with such close relatives mating. The kittens from such a mating may be perfectly normal, or they may suffer from birth defects – there is no way to tell until they are born.

Can cats mate with their siblings?

Cats’ siblings may mate as they reach their reproductive stages. To prevent this from happening, ensure that your cats are neutered or spayed before they’re 6 months old. Line breeding or inbreeding isn’t recommended unless you’re familiar with the lines behind your cats.

What happens if a cat gets pregnant by her brother?

The concern with breeding siblings is that it can cause genetic problems to be expressed easier due to recessive genes. Unfortunately you will not know if any problems will exist until the kittens are born. To prepare for kittens, the first thing to do is take Mango into the vet to confirm she is pregnant.

Is it OK for cats to inbreed?

It is perfectly acceptable to breed related cat and register their offspring. Inbreeding is the breeding of closely related cats, such as father to daughter or mother to son.

Will inbred kittens survive?

No inbred cats don’t live long, they have more health problems (espeically heart). And if they are having kittens at 6 months old, it stunts the growth and certainly doesn’t produce healthy kittens.

How can I tell if my cat is inbred?

Signs of excessive inbreeding include regular small litter sizes (one or two kittens), crooked noses, misaligned jaws, abnormal eye set and asymmetry. Male and females may experience low fertility and cancer is more common in younger cats.

Can a 1 year old cat get pregnant?

Cats reach sexual maturity (and thus are able to breed) from around 4 months of age. Hence current advice to have your cat neutered around 4 months old to prevent unwanted pregnancies (see our information on neutering and timing of neutering).

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