Shamo

Shamo key facts

Care level

Advanced

Lifespan

Little data

Size

Males 1.0-5.6 kg (by type)

Diet

Chicken rations for each growth stage, greens and oyster shell for layers, with feed adjusted to prevent overeating

Temperament

Bred for fighting, it is extremely combative; always separate males and avoid changing flock membership.

Housing

It panics at sudden sound and light, so keep the house calm and not too bright with perches as refuges; large Shamo need plenty of room.

Vocalization

Cocks crow loudly, so neighbours must be considered in residential areas.

Feeding

Feed rations for the growth stage and adjust the amount against body weight to prevent overeating.

Health & notes

Cocks' spurs can injure handlers, so handle with care. It is a natural monument breed, so check transfers and exports with the relevant board of education. Under the Act on Domestic Animal Infectious Diseases Control, chickens are livestock subject to hygiene management standards, and anyone keeping even one bird must report the number kept to the prefecture (livestock hygiene service centre) by 15 June every year. Keepers of fewer than 100 birds file a simplified report, and those shipping no birds or eggs need no attachments.

About Shamo

The Shamo is a bold Japanese fowl with an upright neck and powerful chest, bred from fighting cocks introduced from Thailand and known for its intense fighting instinct; designated a national natural monument in 1941.

7 things to know before welcoming a Shamo

1. 1Males Fight Fiercely

   Shamo roosters have an extremely strong fighting instinct, and housing two males together can lead to violent fights and serious injury. If you keep more than one, you'll need separate spaces to keep them from coming into contact.

2. 2Best Suited to Experienced Keepers

   Shamo are considered an advanced-level breed to keep. Their temperament and handling needs suit keepers who already have experience, so first-time keepers may want to start with a calmer breed first.

3. 3Needs Room to Move

   With their powerful chest muscles and sturdy build, Shamo do best with enough space to move around actively. Keeping them permanently in a cramped cage tends to cause stress, so an outdoor run or similar space is worth planning for.

4. 4Adult Size Varies by Bloodline

   Adult Shamo size varies considerably by bloodline, with males ranging from roughly 1.0 to 5.6kg. It's worth asking the breeder which bloodline a bird you're considering is closer to, so you can gauge what housing you'll need.

5. 5Plan for Temperature Swings

   As with chickens generally, extreme summer heat and winter cold can affect a Shamo's condition, so temperature management suited to the season matters. Think ahead about shade, ventilation, and winter protection for their housing.

6. 6Handle with Care

   Known for their strong fighting instinct, Shamo can also show wariness or aggression toward people. Take particular care and never leave young children unsupervised around them.

7. 7A Natural Monument Breed — and Required Reporting

   The Shamo was designated a Japanese national natural monument in 1941. Because of this status, check with the relevant board of education before selling, exporting or cross-breeding birds. Also note that under Japan's Act on Domestic Animal Infectious Diseases Control, chickens are livestock covered by the hygiene management standards, and anyone keeping even a single bird must file an annual report of the number of birds kept with their prefecture (via the local Livestock Hygiene Service Center) by June 15 each year. With fewer than 100 birds the report is simplified, and no supporting documents are needed if you don't ship eggs or birds.

Frequently asked questions about Shamo

Q.Can beginners keep a Shamo?

A.Shamo are considered a breed for experienced keepers due to their high difficulty level. If this is your first time keeping chickens, it's best to build up experience with a calmer breed first.

Q.How big does a Shamo grow?

A.Adult size varies by bloodline, with males typically ranging from about 1.0 to 5.6kg. It's a good idea to ask the breeder which bloodline a particular bird is closer to.

Q.Can you keep multiple males together?

A.Shamo roosters have an extremely strong fighting instinct and can fight fiercely if housed together. If you keep more than one male, you'll need separate spaces to prevent direct contact.

Q.How long do Shamo live?

A.There isn't much established data on Shamo lifespan, so it isn't clearly known. It can also vary with housing conditions and the individual bird, so keeping a close eye on day-to-day health matters.

Q.What is the Shamo's temperament like?

A.Shamo are known for an extremely strong fighting instinct and a bold, feisty character. Because males in particular fight fiercely with one another, care is needed in how they're housed and handled.

Useful tools for Shamo care

Learn more about Shamo in the encyclopedia

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