Tuesday, January 10, 2017

Meet MezzoMixx, a Very Unusual Male Tortie


The vast majority of tortoiseshell cats are female, because two X chromosomes are required to produce black, gold and orange coloring. Male cats only have one X and one Y chromosome, so technically it’s genetically almost impossible for a male to inherit the tortoiseshell coloring. A male tortoiseshell has an extra X chromosome, making it an XXY. According to a study by the College of Veterinary Medicine at the University of Missouri, only 1 in 3000 tortoiseshell cats is male. Due to the chromosome imbalance, male tortoiseshell cats are (usually) sterile.

This is not the case with MezzoMixx, a stunningly gorgeous almost 3-year-old Maine Coon. He lives with Carina und Anita in the German state of North Rhine Westphalia. Carina and Anita breed and show Maine Coons because they love the breed*. All cats are members of the family and have access to all areas of their home.


When Mezzomixx, whose full name is “Witches MezzoMixx Fantaghiro of Loveliness,” was four months old, Carina and Anita realized that the cat they thought was female turned was actually a male. And while male tortoiseshell cats are usually sterile, MezzoMixx is not. Tests performed at the University of Veterinary Medicine Hanover confirmed that MezzoMixx is a XY/XY chimera. I have to confess that genetics makes my head explode, but Carina and Anita provide a detailed information about MezzoMixx’s genetics on their website (you’ll have to run it through Google Translate  and disregard the unfortunate translation of Kater. “Kater” is German for “male cat,” but it’s also the German word for “hangover.”)


Father and Daughter

MezzoMixx has fathered five litters. “I’m Perfekt,” shown with him above, is his daughter from his most recent litter. “He is so potent that we have problems letting him be with the rest of the cats,” said Carina. “He will recognize a female in heat long before we realize it!” Since he loves his “girls,” he is not very happy when he’s kept separate from the other cats in the home. Carina and Anita are considering having him neutered in the next 6 to 12 months.


MezzoMixx is a loving father who takes good care of all of his kittens. With his human family members, “he acts like a dog born into a cat’s body,” says Carina. “He greets us at the door when we come home from work, and he immediately wants to be held.” He follows Carina and Anita everywhere, and, true to his tortie coloring, he’s a big talker.

He has a mellow temperament. “He would never scratch or bite,” says Carina, “not even when we have to cut a mat ouf of his fur, or he has to get a bath.” He is a favorite at the vet clinic, where he will march out of his carrier and present himself as the star he knows himself to be.


At cat shows, he relaxes in his cage until it’s time for him to be judged, and he shows no signs of stress during the process. “I think he’s an all around perfect cat,” says Carina.

You can learn more about MezzoMixx on his Facebook page.

All photos via MezzoMixx’s Facebook page, used with permission

*Editor’s note: I advocate adopting from a shelter or rescue group rather than purchasing a pedigreed cat, but I respect the love for a particular breed, or special requirements of a breed (such as human allergies.) I urge anyone considering a purebred cat to contact a breed-specific rescue group. If you are going to purchase from a breeder, do your research and only purchase from responsible breeders. Responsible breeders are individuals who have focused their efforts on one or a select few breeds and through breeding, historical research and ongoing study, mentoring relationships, club memberships, showing, raising and training of these breeds have become experts in their health, heritable defects, temperament and behavior. Responsible breeders are well suited to educate and screen potential buyers/adopters and provide follow-up support after purchase or adoption. Responsible breeders take lifetime responsibility for the animals they have bred. (Source: ASPCA Position Statement on Criteria for Responsible Breeding.)

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