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Sheep have a breeding season (tupping) in the autumn, though some can breed year-round. [1] As a result of the influence of humans on sheep breeding, ewes often produce multiple lambs. This increase in lamb births, both in number and birth weight, may cause problems with delivery and lamb survival, requiring the intervention of shepherds. [2]
This is a collection of lists of mammal gestation period estimated by experts in their fields. The mammals included are only viviparous (marsupials and placentals) as some mammals, which are monotremes (including platypuses and echidnas) lay their eggs. A marsupial has a short gestation period, typically shorter than placental.
Four breeds of sheep, in the illustrated encyclopedia Meyers Konversationslexikon. This is a list of breeds of domestic sheep. Domestic sheep (Ovis aries) are partially derived from mouflon (Ovis gmelini) stock, and have diverged sufficiently to be considered a different species. Some sheep breeds have a hair coat and are known as haired sheep.
This is a list of sheep breeds usually considered to originate in Canada and the United States. [1] [2] Some may have complex or obscure histories, so inclusion here does not necessarily imply that a breed is predominantly or exclusively from those countries.
Pages in category "Sheep breeds" The following 200 pages are in this category, out of approximately 308 total. This list may not reflect recent changes.
The breed has been used extensively for crossbreeding to produce sheep with various desirable characteristics, but particularly leanness, better wool production and improved fertility and fecundity (more lambs) and excellent "doing" ability. An important feature of Finnsheep is their thin, wrinkle-free skin and bare breech.
The Icelandic [a] is the Icelandic breed of domestic sheep.It belongs to the Northern European Short-tailed group of sheep, and is larger than most breeds in that group.. It is generally short-legged and stocky, slender and light-boned, and usually horned, although polled and polycerate animals can occur; there is a polled strain, the Kleifa.
The Polypay sheep breed is a white, medium-sized (65 kg), polled sheep which was developed in the 1960s at the U.S. Sheep Experiment Station in Dubois, Idaho. [1] In general, Polypay sheep are noted for being a highly prolific maternal dual-purpose (meat and wool) breed. It produces yearly about 4.2 kg of wool and is weaned at 120 days. [2] [3]