Columbia sheep

Also found in: Medical.

Columbia sheep,

medium-wool breed developed in the United States using Lincoln and Rambouillet sheep crosses. The breed was developed primarily for the Western ranges but is also used successfully in farm flocks. Columbias are white-faced, hornless, and relatively large in size and are prolific breeders.
References in periodicals archive ?
For each passage, bacterial contamination of the eggs was excluded by plating out the allantoic fluid on a Columbia sheep blood agar plate.
The swabs were inoculated in Columbia sheep blood agar and selective enrichment broth.
After 4 days, a gram-variable polymorphic rod, named nimes373, grew from both aerobic culture vials and yielded very small polymorphic colonies on Columbia sheep blood and blood-chocolate agar plates (Bio-Rad, Marnes-la-Coquette, France).
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