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Best Market Lamb? USDA Says Suffolks

USDA evaluates and rates four sheep breeds for their production and market quality.

August 30, 2013

Suffolk rams produce the best market sheep, according to an evaluation by the USDA. Photo courtesy Jack Dykinga/USDA
Courtesy Jack Dykinga/USDA

Sheep producers in western states can get a better idea of which sheep breeds are best suited for their operations, based on a comprehensive evaluation by USDA scientists of the animals used to produce market lambs.

The researchers examined critical performance traits of lambs sired by rams in four sheep breeds: Columbia, Suffolk, Texel and a composite breed developed at the Agricultural Research Service’s Roman L. Hruska U.S. Meat Animal Research Center in Clay Center, Neb. They evaluated lamb survival, growth, body composition, efficiency, and carcass merit and value.

Rams from each breed were mated to Rambouillet ewes, producing more than 1,800 lambs over a three-year period. Suffolk-sired lambs were larger at birth, grew faster and had a survival rate as good as or better than other crossbred lambs.

After weaning, lambs were fed a high-energy diet and weighed weekly. Suffolks had the most rapid gains, most desirable leanness and were equal or superior to other lambs in growth, fat depth and loin muscle area. When examined for feed efficiency, Suffolks also scored better than other breeds. Columbia-sired lambs required more than 15 pounds of additional feed compared with other groups.

At comparable market weights, Texels had heavier carcass weights and larger loin muscle areas, but were also fatter than lambs sired by the other breeds.

While the Suffolk scored the highest in most performance traits, other breeds still have desirable qualities. The Texel can produce heavily muscled lambs ready for market at younger ages. The Columbia is valuable for wool production and might be used as both a maternal and sire breed. The composite, developed mainly as a genetic resource, might be useful in stressful production environments that favor a lamb with intermediate growth potential.

Scientists are developing new germplasm resources in an effort to capture each breed's positive traits and incorporate them into a higher-performance breed.


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Best Market Lamb? USDA Says Suffolks

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Reader Comments
what about babydoll
F, C, NH
Posted: 10/8/2013 5:43:09 AM
D, D, DE
Posted: 9/17/2013 6:11:20 AM
The suffolk are the last breed of sheep I would buy.... for meat lamb you need a hair breed and the meat is superior to any wool breed you can raise. NO lanolin... Noo Mutton!
Lorna, Poplarfield, MB, MB
Posted: 9/14/2013 8:13:45 PM
No Sheep breeds can compare to the Dorper! We raise White DOrpers and have a much higher butcher rate... meat to box from live lamb.... and we never have mutton... take less feed to finish... no shearing... no lanolin.... excellent leather hides.... easy to handle.... work well in small or large operations and easy for anyone to handle.... can handle extremes in weather and temperature... either cold or hot... we lamb in February in north-central Canada with no heated buildings. Better mothering and flocking than many other breeds. YES you need to do more on sheep and their benefits... ours work well in clearing brush not just fancy pastures... and respect electric fences. Visit us at www.wall2wallsheep.com
Lorna, Poplarfield, MB
Posted: 9/11/2013 3:09:12 PM
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