The Rambouillet originated in France. Th e breed was developed from the Spanish Merino. The first importations into the United States took place about 1840. About one-half, or more, of the crossbred sheep in the United States carry some Rambouillet blood. The breed is particularly popular in the western states and is the most popular of the fi ne wool breeds.
Rambouillets are white in color. They are large and have an angular, blocky body type. They produce a meatier carcass than the Merino, but it is not as good as the carcass of the breeds bred for meat production. There are both horned and polled rams. All ewes are polled. Their fleece grows about 3.5 inches(8.9 cm) per year.