RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook Thesaurus Medical Legal Encyclopedia Wikipedia sheep·dog alsosheep dog(shēp′dôg′, -dŏg′) n. A dog trained to guard and herd sheep. Also calledshepherd dog. ...
and lamb growth. Length of the breeding season varies among breeds: in the Soay sheep of the St. Kilda Isles of western Scotland, ewes may experience only a single estrus during the breeding season. In other seasonal breeds such as the Ile-de France or the Awassi, the natural breeding sea...
Much of the agricultural land in Scotland was devoted to this activity, especially on large commer- cial farms created by landlords' appropriation and enclosure of com- mon land. Two breeds of sheep dominated: Cheviot and Blackface. Originating on the Cheviot Hills that straddled Northumberland ...
Such differences were observed between the Cheviot and Lanark breeds, with the Cheviot exhibiting the least and the Lanark exhibiting the most rumen microbial diversity among the breeds. Based on weighted and unweighted UniFrac distances, beta diversity analysis showed no differences in overall ...
Conversely, if the self-colour pattern mutations are shared, then genetic variation in Soays may be ancestral or more recently derived because of interbreeding with modern domestic breeds; either way this is crucial to our understanding of the maintenance of the polymorphism. In this study, we ...
There are many different types of sheep breeds available throughout the world. All these breeds are not suitable for farming in all places around the world.
In many breeds, the PrP allele encoding valine at codon 136 confers an extremely high risk of scrapie, but in Suffolk sheep this allele is vanishingly rare. In this study of a single closed flock of Suffolk sheep in Scotland, scrapie occurred primarily in animals which were homozygous for ...
Unique amino acid polymorphisms of PrP genes in Mongolian sheep breeds. J Vet Med Sci. 2003;66:1293–5. Article Google Scholar González L, Martin S, Sisó S, Konold T, Ortiz-Peláez A, Phelan L, Goldmann W, Stewart P, Saunders G, Windl O, Jeffrey M, Hawkins SA, Dawson M, Hope...
Sheep are wooly ruminant mammals that have been domesticated by humans for thousands of years. There are over 200 different sheep breeds, descended from various
Scotch Black-face, which belong to Scotland; the Welsh Mountain, which belongs to Wales; and the Roscommon, which is Irish. The majority of the true mountain breeds are horned, the males only in the cases of Cheviot, Herdwick, Penistone and Welsh, though most Cheviot and many Herdwick ...