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At what age does my cat reach adult size?

Measured at the withers, the adult size of a cat or a cat varies depending on the breed of animal. It is reached when the growth of the small feline is completely complete. It coincides with the age of sexual maturity. This is why not all cats reach their adult size at the same age, especially since this final size is impacted by various factors. Let’s take stock and also see what questions to ask if a cat’s growth seems to be stunted.

The adult size of a cat depends on its breed.

There are large-breed cats and others that, when fully grown, will not be so large. And not all cats reach adult size at the same age. It should therefore be known that the small breed cats reach their final size at about 9 months, and generally do not exceed 23 cm at the withers. A large breed cat for example measures at least 35 cm at the withers as an adult (some exceed 44 cm) but it does not reach its final size until the age of 20 months on average (and more precisely between 18 and 24 months) because its growth takes longer. The difference is therefore… size!

Among the largest breeds of cats are the Norwegian Cat, the Siberian, the Maine Coon, the Highlander Lynx as well as the Savannah and the Ragdoll.

For information, on average a cat becomes pubescent between 6 and 12 months and a male cat between 6 and 10 months. We must therefore take these data for what they are, that is to say averages, and everyone must take into account several determining factors to have an idea of ​​the size that their kitty or kitty will reach in the future. adulthood. You should know that two cats do not necessarily reach the same Level of development at the same age. So there’s no need to panic if the kitty born the same day as that of the neighbor seems tiny next to its congener. No doubt they are not of the same sex or do not belong to the same feline race.

How do I know if my cat has finished growing?

Veterinarians advise owners to weigh their cat regularly during its growth period. The weight curve increases regularly as long as the small feline has not reached the age of sexual maturity and it takes about 90 to 100 g per week. Thus, when its weight stabilizes, that is to say when the cat no longer grows, it is a sign that its growth is complete. It can then be measured at the withers. The number of centimeters obtained will no longer increase.

When growth is complete, the cat presents signs of behavior very specific such as, for example, urinary marking, reduced interest in gambling, the desire to wander, repeated running away in order to find a sexual partner. All of this can of course be avoided through sterilization.

Impact of sterilization on the adult size of a cat (of a female cat)

Sterilization has an impact on the growth of a cat because it acts on the production of testosterone and estradiolfrom sex hormones on which the bone growth. It is therefore quite possible that a cat (or a cat) sterilized very young, that is to say well before the age of puberty, may experience a period of growth a little longer than in the case of an unsterilized cat. Consequently, it can be noted that some sterilized cats have a moderately larger adult size than their non-sterilized congeners belonging to the same breed. The difference is not huge, and it is not systematic.

In any case, the moment is well chosen for encourage cat owners to sterilize their pets soon enough, either before puberty, as this protects their health and prevents unwanted litters. However, it is not desirable for a cat or a female cat to be sterilized before the age of 3 months. Ideally, the kitten should have reached theat least 4 months old to undergo this type of intervention.

Why is it important to monitor your cat’s growth?

From birth until it reaches adulthood, the little feline needs special care. It is known that certain factors have an influence on its development. Thus, when we see that the little feline stagnates in terms of weight or size while he is still an immature cat, he is fundamental and urgent of consult the veterinarian.

Perhaps he does not benefit from a living environment that meets his needs. Is he rejected by his mother? If he is weaned, is the food he receives adequate? Is the kitten sick? Does he get enough sleep and is his sleep of good quality? These are all questions to ask if the kitty appears not to be developing normally. Only the veterinarian can answer this during an in-depth consultation and give the animal’s master all the advice to follow so that the cat’s growth is harmonious.

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