Breed · Sheep breed
Poll Dorset
The Poll Dorset is a polled (hornless) meat sheep breed developed in Australia from the Dorset Horn, valued for prime-lamb production and an extended breeding season.
Record
Livestock breed- Breed of
- Sheep
- Species
- Sheep (Ovis aries)
- Type
- Meat
- Origin
- Developed from the Dorset Horn, Australia
- Recognition
- Registered
- Conservation status
- Not at riskReported per source and date (e.g. FAO DAD-IS); not a fixed property of the breed.
- Registries
- FAO DAD-IS · Global · as of 2026-07-12Poll Dorset is recorded in the global breed inventory.
- Dorset breed societies (e.g. Australian Poll Dorset associations; Continental Dorset Club) · Australia, United States, and other countries · as of 2026-07-12Poll and Horn Dorset are registered through national Dorset breed bodies; structures differ by country.
- Adaptation
- Kept in temperate pasture-based systems across several continents.
- Primary uses
- Prime-lamb (meat) production, Terminal and maternal crossbreeding
Registry listing or variety protection is jurisdiction- and date-specific and does not by itself indicate current commercial availability, universal cultivation approval, patent status, or a recommendation.
The Poll Dorset is a white, polled meat breed developed in Australia during the mid-twentieth century from the Dorset Horn, into which the polled (hornless) gene was introduced from other breeds. It is a leading prime-lamb sire in Australia and is also kept in other countries.
Like the Dorset Horn from which it derives, the Poll Dorset is noted for an ability to breed outside the main autumn season, which supports lamb production across a wider part of the year in suitable systems.
Origin and history
The Poll Dorset was developed in Australia by selecting for a polled form of the Dorset Horn, introducing the hornless gene from other breeds while retaining the Dorset’s meat qualities and breeding characteristics. It became established as a distinct breed in the twentieth century and is registered through Dorset breed bodies in Australia and elsewhere.
Physical and production characteristics
Poll Dorsets are white-woolled, white-faced sheep of medium to large size, distinguished from the Dorset Horn chiefly by being polled. They are selected for meat conformation and lamb growth.
A notable trait of the Dorset types is a relatively extended breeding season compared with strictly seasonal breeds, which can allow lambing outside the usual season where management and conditions permit.
Management and distribution
The Poll Dorset is used both as a purebred and as a terminal or maternal sire in prime-lamb systems, particularly in Australia where it is a prominent meat breed. It is also kept in New Zealand, North America, and other regions. Management follows general pasture-based sheep husbandry with an emphasis on lamb production.
Relationships
Evidence-backed connections in the knowledge graph.
Farming systems
Scope & limitations
Geographic scope: Global; developed in Australia from the Dorset Horn and bred in several countries.
Climate context: Temperate pasture-based systems; management emphasises lamb production.
- The extent of out-of-season breeding and of growth and carcass traits varies with strain, management, and environment; general descriptions are indicative only.
- Conservation and registry status is date- and source-specific and differs between national populations and registries.
- The Poll Dorset is closely related to, but distinct from, the horned Dorset Horn; sources sometimes treat the Dorset types together.
Sources
This article draws on the following authoritative sources. See our sources & methodology for how they are selected.
- [1]DAD-IS — Domestic Animal Diversity Information System (opens in a new tab)Authoritative
FAO Commission on Genetic Resources for Food and Agriculture
Cited for: Breed record, origin, and characteristics in the global inventory
- Type:
- Official registry
- Jurisdiction:
- Global
- Accessed:
- 2026-07-12
- [2]CABI Digital Library — Crop Protection Compendium (opens in a new tab)High
CABI (Centre for Agriculture and Bioscience International)
Cited for: Breed characterization and background
- Type:
- Reference database
- Jurisdiction:
- Global
- Accessed:
- 2026-07-12