Furry Diary

Zwartbles

Ovis aries

breedShort profile

From Friesland region, Netherlands1

A friendly guide, not veterinary advice. For anything about your pet's health, ask your vet.

At a glance the quick version

Weight, male100 kg1
Weight, female85 kg1
Height, male80 cm1
Height, female75 cm1
Lifespan10 to 20 years2
Sizelarge

Average weights for adult animals.

Docile and friendly nature
Excellent maternal instincts
Easy lambing
Prolific (often twins or triplets)
Striking appearance
132

Looks how to spot one

Wool

The Zwartbles has a dense, springy fleece with a fine to medium crimp. The wool is black or brown at the base, often sun-bleached to brown tips, and may show silvering in older animals. The head and legs are covered in hair, not wool. The breed is naturally polled (hornless) and has a long neck, erect posture, and a slightly roman nose.14

ColoursBlackBrownWhite blaze on faceWhite socks (2-4)White tail tip14

Personality what they are like

Zwartbles are known for being calm, friendly and easy to handle. They are naturally curious and enjoy human company, making them a favourite on petting farms and with hobby keepers. They prefer to be led rather than driven, and their gentle nature suits families with children.15

Daily activity how busy a day looks

Zwartbles need plenty of space to graze and roam. They are hardy and thrive in pasture-based systems, adapting well to various climates including cold, wet conditions. Regular exercise on good grassland is essential for their health.12

Grooming and care the hands-on bits

Sheep require annual shearing to keep their fleece healthy and prevent overheating. Hooves need trimming every few months. Regular health checks for parasites and fly strike are important. Their striking white markings should be kept clean, especially in muddy conditions.1

Home where they are happiest

Zwartbles need secure, well-fenced pasture with shelter from extreme weather. They are hardy and adapt well to the UK and Irish climates. A dry, clean lying area is essential. They can be kept on smallholdings or farms with enough grazing land.13

Food basics what goes in the bowl

Zwartbles are grazers and thrive on good quality pasture. In winter or when grass is sparse, they need hay or silage supplemented with a balanced sheep feed. Fresh water and a mineral lick should always be available.1

Company who they like around

Sheep are highly social animals and must never be kept alone. Zwartbles do best in a flock of at least two or three. They are friendly with humans and other livestock, and their calm nature makes them suitable for mixed-species grazing.15

The story where it all began

The Zwartbles breed originated in the late 19th and early 20th centuries in the Friesland region of the Netherlands. It is thought to descend from the Schoonebeker sheep, a large heathland breed, with possible influences from the Friesian Milk Sheep and Texel. Farmers in North Friesland selectively bred animals with the distinctive black fleece and white markings. The breed was traditionally used for milk and meat, often kept alongside dairy cattle. By the 1970s numbers had fallen to around 500, and it was listed as critically rare by the Dutch Rare Breed Survival Trust. A revival began thanks to interest from hand-spinners in black wool, and the Dutch flock book was established in 1983. The first Zwartbles were imported to the United Kingdom in 1986, and the UK Zwartbles Sheep Association formed in 1995. Today the breed is popular with smallholders and hobby keepers for its docile temperament, maternal qualities, and attractive appearance.145

Recognised by the official bits

UK Zwartbles Sheep Association
Formed in 1995, maintains the flock book for the breed in the United Kingdom.4
Nederlands Zwartbles Schapenstamboek (NZS)
Dutch flock book established in 1983, later officially recognised in 1995.5

The care rhythm Furry Diary remembers it for you

A typical home-care rhythm for a Zwartbles. It is our own starting plan, not a vet's advice, and you can change every line in the app.

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Owner questions the things everyone asks

How often should I feed my Zwartbles, and what should it eat?

Your Zwartbles thrives on good quality pasture for grazing. In winter or when grass is sparse, offer hay or silage with a balanced sheep feed, and always provide fresh water and a mineral lick. Furry Diary's starting plan suggests daily fresh food and water checks.1 Furry Diary plan

Which foods and plants are dangerous for a Zwartbles?

Avoid giving your Zwartbles foods like chocolate, caffeine, avocado, grapes, raisins, onions, garlic, and xylitol, as these are toxic to many pets. For a full list of dangerous plants and foods, consult your vet or a good breeder.6

How much space and land does a Zwartbles need?

Zwartbles need plenty of secure, well-fenced pasture to graze and roam, and they adapt well to various climates. They can be kept on smallholdings or farms with enough grazing land; for exact acreage, ask a good breeder or vet.13

What kind of shelter does a Zwartbles need?

Provide a dry, clean lying area and shelter from extreme weather, as Zwartbles are hardy but need protection. A secure, well-fenced pasture with a sheltered spot is ideal.13

How do I look after a Zwartbles's hooves or feet?

Trim your Zwartbles's hooves every few months to keep them healthy. Furry Diary's plan suggests a monthly foot check, and regular health checks help prevent issues like foot rot.1 Furry Diary plan

Does a Zwartbles need grooming or shearing?

Yes, annual shearing is essential to keep their dense fleece healthy and prevent overheating. Also keep their striking white markings clean, especially in muddy conditions.1 Furry Diary plan

Can a Zwartbles live alone?

No, sheep are highly social and must never be kept alone. Zwartbles do best in a flock of at least two or three, and they are friendly with humans and other livestock.15

How long does a Zwartbles live?

A Zwartbles typically lives between 10 and 20 years, so they are a long-term commitment. With good care, they can be a wonderful companion for many years.2

Is a Zwartbles good with children?

Yes, Zwartbles are calm, friendly, and gentle, making them a favourite on petting farms and with families. Their curious and easygoing nature suits children well.15

What regular vet care does a Zwartbles need?

Regular health checks for parasites and fly strike are important, along with annual shearing and hoof trimming. For a specific vaccination and deworming schedule, ask your vet.1

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 [email protected] and we will fix it.

  1. en.wikipedia.org: Zwartbles en.wikipedia.orgused for origin, weight kg, height cm, coat or body, colours, best traits, temperament, activity needs, grooming or care, habitat needs, diet basics, social needs, history, fun fact
  2. blairdrummond.com: zwarbles sheep blairdrummond.comused for lifespan years, best traits, activity needs
  3. zwartbles.org zwartbles.orgused for best traits, habitat needs, fun fact
  4. zwartbles.org: the breed zwartbles.orgused for coat or body, colours, history
  5. szh.nl: zwartbleshet schaap dat populair is op kinderboerderijen en bij wol at szh.nlused for temperament, social needs, history
  6. ASPCA: People foods to avoid feeding your pets aspca.orgused for owner questions
  7. zwartblessheep.ie: breed zwartblessheep.ie
  8. heritagesheepreproduction.com: zwartbles heritagesheepreproduction.com
  9. zwartbles.org: the association zwartbles.org
  10. VCA Animal Hospitals: Feeding times and frequency for your dog vcahospitals.comused for owner questions
  11. ASPCA: Dog grooming tips aspca.orgused for owner questions
  12. ASPCA: Cat grooming tips aspca.orgused for owner questions
  13. RSPCA: What to feed your rabbit rspca.org.ukused for owner questions

Checked 2026-10-02. Text is written in our own words from these sources.