Thin Maine Coon

Thank you so much already for your two replies. To answer @Teemteem, my boy is roughly the same length as the female. My girl is a bit on the chubby side (she’s got a little tummy) but my boy is really skinny. He hasn't put on any weight for two months now. Mind you, they aren't from the same breeder and don't share any parents. To answer @Princesse et moi pour toujours, I didn't have much choice regarding getting my girl spayed. The breeder was adamant it had to be done before she was 6 months old (some even do it at 3 months, which is awful). I held off as long as I could because I’m really against early neutering, especially for slow-maturing breeds like Maine Coons and also for my British Shorthairs (my girl was spayed at 15 months because her calling was upsetting my whole little cat gang). My boy’s breeders are much more relaxed about it; they just ask that he isn't used for breeding and recommend neutering at around 2 years old. There’s a good relationship of trust there.

I’m open to any advice you might have. Thanks.

Hi there,

It all depends on your male's build: is he longer and bigger than the female, who is a month older?

Breed standards vary, so it’s better to look at a range of norms based on the individual cat's frame. His weight progression is what really matters—specifically, how much he’s put on since he was 6 months old and his monthly gain. A raw weight figure at a single point in time, without any context, won’t give you an accurate picture.

That being said, according to the usual standards:

When a kitten reaches 3 months old, a female weighs 3.3 to 5.5 lbs on average, and a male weighs between 4.4 and 6.6 lbs. By the time they are a year old, a male weighs around 13 to 15 lbs, while a female Maine Coon is usually between 9 and 11 lbs.

A Maine Coon kitten keeps growing until they are 4 years old, reaching an average adult weight of 11 to 13 lbs for a female and 17 to 22 lbs (roughly 1 stone 4 lbs to 1 stone 8 lbs) for a male.

Maine Coon kittens grow in length until they are two years old, then they fill out and gain muscle mass for another year or two. Their growth period is very intense and lasts a long time.