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Male Torti-Point Himalayan - Fertile?

post #1 of 7
Thread Starter 
I've heard from non-hardcore cat people that male calico cats are commonly not fertile. I have a male Torti-point Himi that was 1 year old the first of April (2006). He's tried to breed my female a couple of times, but no success. Is it due to youth and inexperience or could he be infertile? Not to sound crude, but I checked enough to know he has 2 testicles descended, but he's not overly well endowed. I was just curious if anyone knows if infertility is linked to his color? I've never seen a male torti-point of any type before, and was curious.
post #2 of 7
Tortoise-shell and calico colors are sex linked to females.
So the chances of a male exhibiting these colors and being fertile is pretty small.
post #3 of 7
The percentage of male calicos/torties is very small to begin with. The percentage of FERTILE male calicos are even smaller. Chances are that he is infertile. You might have him tested for any sperm count. If he's infertile, then just neuter him and keep him as an unusual pet.

I know of only one fertile male calico (was a cornish rex). He sired a few litters but was genetically a "black" even tho he had both colors. Male calicos cannot throw both red and black like their sister calicos - they are either one color or the other but not both.
post #4 of 7
Female have two X chromosomes (XX) and males have one X chromosome (XY). The red and black color are carried on the X chromosomes. Since males only have one X, they can only be red or black. Occasionally humans (or cats) can have genetic defects causing them to be (XXY). XXY appear as males (the Y chromosome is responsible for this). They can have red and black together because they have two X chromosomes, but their genetic defects cause most to be infertile. In humans this syndrome is called Klinefelter's syndrome.
post #5 of 7
I do know of a male lilac tortie point siamese who has been successfully used as a stud. I don't know the people, but I saw an ad they had online, and a pic of the male, saying he is a proven stud. I have never heard of another instance where a cat with this coloring has been fertile. It's rare for a cat of this coloring to even be male to begin with.
post #6 of 7
In order for him to be fertile, he'd have to be a chimera. That's really rare. Technically, it would mean that he actually has 2 different sets of DNA on different parts of his body. When GoldenKitty mentions the male calico that threw black, that means that his testes were genetically a black cat. Other parts of his body were genetically orange.

It's REALLY rare though. I think it has to happen from two embryos fusing together really early so that they form one embryo instead of conjoined twins. Sort of like a super conjoined twin.
post #7 of 7
Thread Starter 
Thanks - had just wondered. Looks like I'll have to find another male - might look into testing him first, though - just in case. I've been wanting a flame-point (lost mine this spring) and it is much easier to find a male than a female. Thanks - my tortie male's name is Mushu - and he's a sweetie, so he has a home here regardless. Fertile or not, he thinks he is. I'd also wondered too, because we had a half-Himi male (now neutered) that was a proven stud and has the typical male cat thick scruff, etc - which Mushu doesn't. He's heavier than a female, but not like a mature male. Thanks again.
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