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What Is Cat Breeding?

Cat breeding is the practice of selectively mating pedigreed cats to produce offspring that meet specific breed standards — defined physical characteristics, coat types, temperaments, and health profiles. It’s part genetics, part animal husbandry, part obsessive record-keeping, and — when done responsibly — a genuine commitment to preserving and improving specific feline breeds.

A Surprisingly Recent Hobby

Humans have lived with cats for roughly 10,000 years, but cat breeding as an organized activity is only about 150 years old. The first cat show was held at London’s Crystal Palace in 1871, organized by Harrison Weir — often called the father of the cat fancy. Before that, cats were valued primarily as mousers, and “breeds” as we know them barely existed.

Compare that to dogs, which have been selectively bred for specific tasks (herding, guarding, hunting) for thousands of years. Cats domesticated themselves — they moved into grain-storing agricultural communities because mice were there — and humans mostly let them be cats. The idea of breeding cats to specific appearance standards is, in evolutionary terms, a brand-new experiment.

Today, the Cat Fanciers’ Association (CFA) recognizes 45 breeds, while The International Cat Association (TICA) recognizes 73. Despite this, purebred cats represent only about 3-5% of the domestic cat population. The vast majority of the world’s estimated 400 million pet cats are mixed breeds.

How Breeding Works

Selecting Breeding Pairs

Responsible breeders select mating pairs based on breed standard conformity (how closely each cat matches the ideal for its breed), genetic health testing results, temperament, and pedigree analysis to avoid inbreeding. The goal isn’t just producing kittens that look right — it’s producing kittens that are healthy, well-tempered, and genetically sound.

Genetic testing has become central to responsible breeding. DNA tests can identify carriers of breed-specific diseases: polycystic kidney disease (PKD) in Persians, hypertrophic cardiomyopathy (HCM) in Maine Coons, progressive retinal atrophy (PRA) in Abyssinians. Testing both parents before breeding prevents producing affected kittens.

The Breeding Process

Female cats (queens) come into heat cycles multiple times per year, typically from spring through fall. Unlike dogs, cats are induced ovulators — ovulation is triggered by mating. Queens in heat are vocal and insistent, which any cat owner who has lived through a heat cycle can confirm.

Mating is supervised by breeders, and the queen typically stays with the stud for several days. Pregnancy lasts approximately 63-65 days. Litter sizes range from 1-12 kittens, with 4-6 being typical. Breeders are present for births when possible, as complications — though uncommon — can require veterinary intervention.

Kitten Development

Kittens are born blind and deaf, weighing 3-4 ounces. Eyes open at 7-10 days. Socialization between 2-7 weeks is critical for producing well-adjusted adult cats — handling kittens gently during this period, exposing them to household sounds, and allowing interaction with people shapes their lifelong comfort with humans.

Responsible breeders don’t release kittens to new homes until 12-16 weeks of age. This allows complete weaning, essential socialization with littermates (kittens learn bite inhibition and social skills from siblings), and initial veterinary care including vaccinations.

Major Breed Categories

Longhaired breeds — Persians (the most registered breed in CFA for decades), Maine Coons (the largest domestic breed, males averaging 13-18 pounds), Ragdolls (known for going limp when picked up), Norwegian Forest Cats. Longhaired breeds require regular grooming to prevent matting.

Shorthaired breeds — Siamese (one of the oldest recognized breeds, known for vocal personalities), British Shorthairs (round, plush, and calm), Abyssinians (athletic and curious), Bengals (wild-looking cats developed from crosses with Asian Leopard Cats).

Hairless and unusual — Sphynx cats (not actually hairless — covered in fine peach fuzz), Scottish Folds (folded ears caused by a cartilage mutation), Munchkins (short legs, controversial for potential health issues).

The Ethics Question

Cat breeding sits in an uncomfortable ethical space. Shelters in the U.S. take in roughly 3.2 million cats annually, and approximately 530,000 are euthanized each year (ASPCA estimates). Against that backdrop, intentionally producing more cats requires justification.

Responsible breeders argue they’re preserving specific breeds with documented characteristics, that their kittens go to screened homes with contracts requiring spay/neuter of pet-quality cats, and that breed-specific traits (hypoallergenic coats, specific temperaments, predictable sizes) serve real purposes for specific adopters.

Critics counter that shelter cats are equally wonderful companions, that breeding perpetuates genetic health problems concentrated in small gene pools, and that every purchased kitten represents an adopted cat that didn’t find a home.

The reality, as with most binary debates, is somewhere in the middle. The worst breeding practices — kitten mills, no health testing, no socialization, profit-driven overproduction — are indefensible. The best breeding practices involve genuine dedication to breed health, extensive veterinary care, and homes screened more carefully than most adoption agencies require.

The Cat Show World

Cat shows are where breeders compete. Judges evaluate cats against breed standards — head shape, eye color, coat quality, body proportions, and temperament. Championships are awarded, and titled cats become more desirable as breeding stock.

The show world has its own culture: grooming rituals (some breeds require hours of bathing and blow-drying before a show), travel circuits, and the intense but oddly warm community of people who arrange their weekends around animal competitions. Show halls are surreal experiences — hundreds of meticulously groomed cats in decorated cages, judges handling each one with practiced expertise, and exhibitors who can discourse for hours about the precise angle a Siamese ear should achieve.

Whether you’re drawn to a specific breed’s characteristics or simply curious about what humans have done with 150 years of selective cat breeding, the cat fancy world is a fascinating intersection of genetics, aesthetics, animal welfare, and passionate hobbyism.

Frequently Asked Questions

How many cat breeds are there?

It depends on which registry you ask. The International Cat Association (TICA) recognizes 73 breeds. The Cat Fanciers' Association (CFA) recognizes 45. The Fédération Internationale Féline (FIFe) recognizes 48. New breeds are still being developed and accepted, though the process takes years of documented breeding and demonstrated genetic stability.

Is cat breeding profitable?

Rarely. Responsible breeding is expensive — genetic testing ($200-500 per cat), veterinary care, quality food, show entry fees, and the occasional emergency C-section or kitten requiring hand-rearing. Most responsible breeders break even or operate at a modest loss. Those who profit typically cut corners on health testing or animal welfare. Kittens from reputable breeders cost $1,000-$3,000+ depending on breed.

What is the difference between a pedigreed cat and a mixed breed?

A pedigreed (purebred) cat has documented ancestry going back multiple generations within a single recognized breed. A mixed-breed cat (domestic shorthair/longhair, often called 'moggies') has unknown or mixed ancestry. Mixed breeds make up about 95% of the world's cat population and are generally healthier than purebreds due to greater genetic diversity.

Further Reading

• The International Cat Association (TICA)
• Cat Fanciers' Association (CFA)
• Cornell Feline Health Center