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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]
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]
Sheep (Ovis aries) 150 [5] Sheep (Ovis canadensis) 180 [2] ... There is a positive relationship between mass at birth and length of gestation in eutherian mammals. [17]
Ewes lamb at eight-month intervals in February and October; the length of gestation is typically 147 days. About 65% of ewes produce multiple births. [1] Ewes lamb without difficulty. Lambs grow at rapid rates and produce excellent carcass meat. [2] Rams are used in many breeding programs to improve the meat characteristics of other breeds. [2]
Sheep meat and milk were one of the earliest staple proteins consumed by human civilization after the transition from hunting and gathering to agriculture. [24] Sheep meat prepared for food is known as either mutton or lamb, and approximately 540 million sheep are slaughtered each year for meat worldwide. [147] "
The staple length ranges from 2.5 to 4 inches (6.4 to 10.2 cm) with a numeric count of 46's-58's. The fiber diameter ranges from 27.0 to 33.0 microns. At maturity, ewes weigh between 150 and 200 pounds (68 and 91 kg), some weighing more in show condition. Mature rams range in weight from 225 to 275 pounds (102 to 125 kg).
The Finnish Landrace, Finn or Finnsheep is a breed of domestic sheep native to Finland. It is one of several Northern European short-tailed sheep breeds, but is notable for its high incidence of multiple births – it is common for a ewe to have three, four, or even five lambs at once. The lambs are often small, but are vigorous at birth and ...
The Fries Melkschaap is a Dutch and German breed of dairy sheep.It originates in the Frisia region, which includes parts of both northern Holland and north-western Germany. . It has many names: the German stock is known as the Ostfriesisches Milchschaf, or in English as the East Friesian, the East Friesland Milch or the German Milksheep, while the Dutch equivalent is known as the Friesian Milk ...