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A Columbia ewe lamb. The Columbia is one of the first breeds of sheep developed in the United States. [1] The product of USDA and university research, it was intended to be an improved breed adapted for the Western ranges of the country (where the majority of sheep raising takes place).
Sheep (pl.: sheep) or domestic sheep ... Their rate of growth and mature weight is a heritable trait that is often selected ... the American Columbia breed was ...
The Columbia was developed in Wyoming and Idaho in the early 1900s. It is a large, big-bodied sheep with heavy, good quality fleeces. The average Montadale ram weighs 200 to 275 pounds and the ewe weighs 160 to 180 pounds. The first cross of Columbia rams on Cheviot ewes proved to Mattingly that his project was on track.
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.
Mature body weight in the rams is 200 lb (90 kg) to 300 lb (135 kg), with the ewes weighing slightly less at 125 lb (56 kg) to 200 lb (90 kg). Each ewe will average a 10 lb (4.5 kg) to 14 lb (6.3 kg) fleece; it has a fibre diameter of 21 to 25 micrometers and a spinning count of 64 to 58.
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Weight: Male: 80–130 kg (180–290 lb) Female: 70–90 kg (150–200 lb) ... is a breed of domestic sheep originating in the Valais region of Switzerland. [2]
In British Columbia, the Range Regulation defines "animal unit month" for purposes of the Range Act. Effectively, the regulation assigns animal unit equivalents of 1 for a cow (either by herself or with an unweaned calf), 0.7 for a yearling of the genus Bos, 1.5 for a bull, 1.25 for a horse, 0.2 for a sheep, 0.2 for a llama, and 0.1 for an alpaca.