Estonian Ruhnu sheep

Estonian Ruhnu sheep

Estonian Ruhnu sheep ( _et. Eesti maalammas) are a breed of native domesticated sheep found on the small Estonian island of Ruhnu in the Gulf of Riga in the Baltic Sea. [ North Shed: "Origin and diversity of North European sheep breeds."] ]

The Estonian Ruhnu sheep population is thought to descend from sheep left on Ruhnu by Swedish-speaking inhabitants who settled on the island in the 14th century. [Tapio, I. et al. (2005). [ Unfolding of population structure in Baltic sheep breeds using microsatellite analysis] . "Heredity" 94, 448-454] In 1944 a population of 300 sheep was documented. The current population of the breed is around 30 animals. It is thought that Estonian Ruhnu sheep were originally raised for producing meat and wool.Grigaliūnaitė, Ilma et al. (2003) [ Microsatellite Variation in the Baltic sheep breeds] . "Veterinaria ir zootechnika" 21, 66-73.]

Physical adaptations of the Estonian Ruhnu sheep population to seaside pastures and small paddocks suggests that these sheep have had a rather long period to adapt to their environment. Most of the small population of Ruhnu sheep are white or cream colored with greyish head and legs and some have a distinctive "badgerface" pattern. The ewes are polled and approximately 10% of rams are horned. The sheep have short or medium length tails. Distinctive from many other breeds of sheep, some Estonian Ruhnu sheep have one or two beads under the jaw. The wool is double coated and of two fibre types and it is generally used for making hand knitting yarn and clothing, such as sweaters. Adult live weight of rams is maximum 80 kg (175 lb) and of the ewes 50 kg (110 lb).

Although there is considerable genetic variation in most of the northern European sheep breeds, Ruhnu sheep, as well as Roslag sheep and Dala Fur sheep (both originating in Sweden) exhibit the highest within-population inbreeding. [Tapio, Miika (2006). [ Origin and maintenance of genetic diversity in northern European sheep] . "Acta Universitatis Ouluensis, Series A: Scientiae Rerum Naturalium" 473, 44.] [Tapio, Miika et al. (2005). [ Native breeds demonstrate high contributions to the molecular variation in northern European sheep] . Molecular Ecology 14 (13), 3951–3963.] While the Ruhnu breed was found to be less variable than other Baltic sheep breeds, indicating the need for a breed management plan to prevent further loss of genetic variation, the population size of around 30 sheep is listed as stable. All remaining Estonian Ruhnu sheep on the island live in one semimanaged existing flock, with several individual sheep living on the Estonian island of Kihnu.

ee also

*Domestic sheep
*List of breeds of sheep


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Ruhnu — Saltar a navegación, búsqueda 57°48′N 23°15′E / 57.8, 23.25 …   Wikipedia Español

  • Ruhnu — ( sv. Runö) is an island situated in the Gulf of Riga in the Baltic Sea. It belongs to Estonia and is an administrative part of Saare County. At 11.9 km² it has currently less than 100, mostly ethnic Estonian permanent inhabitants. Prior to 1944… …   Wikipedia

  • Roslag sheep — The Roslag sheep (Swedish: Roslagsfår ) is a breed of endangered domesticated sheep that originated in and is almost exclusively found in Sweden. [ North Shed: Swedish Roslag Sheep] ]… …   Wikipedia

  • Northern European short-tailed sheep — Shetland ewe showing characteristic short, hair tipped tail of northern European short tailed sheep. Northern European short tailed sheep are a group of sheep breeds and landraces from the British Isles, Scandinavia, and the area around the… …   Wikipedia

  • List of sheep breeds — This is a list of domestic sheep breeds. Domestic sheep ( Ovis aries ) are partially derived from mouflon ( Ovis orientalis ) stock, and have diverged sufficiently to be considered a different species.Comprehensive list of domestic sheep breeds… …   Wikipedia

  • Рухну (значения) — Рухну (Руно) (эст. Ruhnu): Рухну небольшой остров в Рижском заливе Балтийского моря, площадь 11,9 км². Рухну волость в Эстонии, в составе уезда Сааремаа, полностью расположена на одноимённом острове. Рухну (эст.)русск. крупнейший населённый… …   Википедия

  • Vormsi — Estonia s fourth largest island, Vormsi (German: Worms, Swedish: Ormsö), is located between Hiiumaa and the mainland with a total area of 93 square kilometers. It is part of a rural municipality Vormsi Parish. From mainland, Vormsi is separated… …   Wikipedia