At a glance the quick version
Coat and looks how to spot one
short, glossy solid black coat
A small, short-haired cat in deep, glossy black, likened to onyx or ink, usually with golden eyes. Old descriptions also mention a white stripe running from the chin down the chest and belly, a detail rarely looked for today.12
The story where it all began
The Korn Ja is one of the cats pictured in the traditional Thai cat-book poems and is common among Thai village and temple cats. Folk belief linked it to protecting the home from misfortune, and Thailand has recently named it one of its five native breeds.13
Fun facts for the dinner table
Recognised by the official bits
- Thai government
- Listed among five native cat breeds recognised as part of Thailand's national identity (reported 2026)3
- TIMBA
- Registered as a standard colour variety of the Maew Boran1
The care rhythm Furry Diary remembers it for you
A typical home-care rhythm for a Korn Ja. It is our own starting plan, not a vet's advice, and you can change every line in the app.
- Brushingevery week
- Nail trimevery 3 weeks
- Teeth brushingDaily brushing is idealevery 2 days
- Litter scoopevery day
- Litter changeevery week
- PlayDaily playevery day
- Flea, tick and worm protectionSchedule as your vet recommendsas your vet recommends
- Vet check-upSenior years usually start around age 11every year
Owner questions the things everyone asks
How often should I feed my Korn Ja, and at what times?
Feeding schedules depend on your cat's age and activity. Ask your vet for a plan that suits your Korn Ja. Furry Diary doesn't have specific times for this breed.
What should a Korn Ja eat, and which foods are dangerous?
Feed a balanced, high-quality cat food. Avoid dangerous foods like chocolate, grapes, raisins, onions, garlic, and xylitol (see ASPCA list). Always check with your vet for the best diet.4
Does a Korn Ja need baths?
Korn Jas have short, glossy coats and rarely need baths. Only bathe if very dirty or sticky, as per ASPCA guidance. Regular brushing keeps them clean.5
How often does a Korn Ja need brushing?
Brush your Korn Ja once a week to keep their short coat glossy. Furry Diary's starting plan suggests weekly brushing, and ASPCA agrees for short-haired cats.5 Furry Diary plan
How do I trim a Korn Ja's claws, and how often?
Trim claws every 10 to 14 days, as ASPCA recommends, taking no more than two claws per session at first. Furry Diary's plan suggests every 21 days, so adjust based on your cat's wear and comfort.5 Furry Diary plan
How much play does a Korn Ja need?
Korn Jas need daily play to stay happy and healthy. Furry Diary recommends at least one play session each day. Interactive toys are great. Furry Diary plan
How do I look after a Korn Ja's teeth and ears?
Brush teeth every two days (daily is ideal) as Furry Diary suggests. For ears, check regularly and ask your vet for specific care routines. Furry Diary plan
How long does a Korn Ja live?
Lifespan varies for each cat. Ask your breeder or vet for typical expectations for this breed.
Is a Korn Ja good with children and other pets?
Temperament varies by individual. Ask a reputable breeder about the cat's personality and socialization.
Can a Korn Ja be left alone?
Cats are independent, but needs vary. Ask your vet or breeder for advice on leaving your Korn Ja alone.
Written from the sources on this page, a few checked guides (VCA, ASPCA, RSPCA) and Furry Diary's own starting care plan. A friendly guide, not a vet's advice.
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Where this comes from
Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at support@furrydiary.app and we will fix it.
- Messybeast: Breeds originating from South-East Asia messybeast.comused for origin, description, history, TIMBA status, fun facts
- List of cat breeds (Wikipedia) en.wikipedia.orgused for type, body, coat, colour
- Seasia: Thailand's five native cat breeds recognised as national identity (2026) seasia.coused for Thai national recognition, cultural meaning
- ASPCA: People foods to avoid feeding your pets aspca.orgused for owner questions
- ASPCA: Cat grooming tips aspca.orgused for owner questions
- VCA Animal Hospitals: Feeding times and frequency for your dog vcahospitals.comused for owner questions
- ASPCA: Dog grooming tips aspca.orgused for owner questions
- RSPCA: What to feed your rabbit rspca.org.ukused for owner questions
Checked 2026-09-30. Text is written in our own words from these sources.