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An introduction to wool judging

An introduction to wool judging. By Susan Schoenian Sheep & Goat Specialist Univ. of MD Coop. Extension www.sheepandgoat.com. Sheep vary considerably in the type of wool they produce. Fine wool from Merino. Carpet wool from a Karakul.

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An introduction to wool judging

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  1. An introduction to wool judging By Susan SchoenianSheep & Goat SpecialistUniv. of MD Coop. Extensionwww.sheepandgoat.com

  2. Sheep vary considerably in the type of wool they produce. Fine wool from Merino Carpet wool from a Karakul One type of wool is not better than the other. They just have different uses.

  3. Breeds of sheep are grouped according to the type of wool they grow. • FineRambouillet, Merino • Crossbred (fine x medium)Targhee, Corriedale, Columbia • Medium (fine x long)Suffolk, Hampshire, Dorset, Cheviot, Montadale, Southdown, Shropshire, Tunis, Polypay • Long (coarse)Romney, Border Leicester, Lincoln, Cotswold • Carpet (double-coated)Scottish Blackface, Karakul, Icelandic • Hair (shedding) - not shearedKatahdin, Dorper, Barbado Rambouillet (fine wool) sheep

  4. Talk like a woolgrower

  5. FleeceThe wool from one sheep. Sheared off in one piece. Grease or raw wool is wool as it is shorn from the sheep.

  6. ClipThe amount of wool shorn from the sheep in one flock.

  7. Fineness – fiber diameter Thickness of the wool fiberMeasured in microns (one millionth of a meter - µ)

  8. Fineness - fiber diameter LongCoarse Medium Crossbred Fine$$$$ Thicker Thinner > 40 µ < 17µ Grade refers to the relative diameter of the wool fibers (fineness).

  9. Fiber diameter Short, dirty  Coarser  Coarser BritchBreech(hairy)  Short, dirty, kinky Polypay

  10. CrimpThe natural curl or waviness in the wool fiber. Fine wool usually has more crimp per inch than coarse (long) wool.

  11. StapleRefers to the length of a (unstretched) lock of shorn wool. Long, coarse Coarse wools are usually longer than finer wools. Medium Fine

  12. Vegetable matter (VM)Any material of plant origin found in the fleece (hay, grass, seeds, etc.) High VM lowers yield.

  13. TagWool that has manure attached to it.

  14. LanolinA natural oil extracted from sheep’s wool. Used to make ointments and cosmetics. Also called wool wax, wool fat, or wool grease.

  15. SkirtingRemoving the stained, unusable, or undesirable portions of a fleece (bellies, top knots, tags). Show fleeces and other high value fleeces should be skirted at the time of shearing.

  16. Wool judging

  17. Wool judging score card You will judge “like” (same type or grade) kinds of wool.

  18. Yield The amount of clean wool that remains after scouring. Expressed as a percentage. Wool yield is quite variable: 40 to 70%.Long wools have higher yields than fine wools, due to less grease. Bulky fleeces have higher yields. Clean wool yield = Raw wool – shrinkage (VM, grease, impurities)

  19. Vegetable matter affects yield Other contaminants: soil, dust, polypropylene from tarps, feed sacks, and hay baling twine, paint, skin, external parasites, and foreign objects.

  20. Length Staple length adds weight to the fleece more than any other characteristic. Look for uniformity of length

  21. Quality or fineness Appropriate grade for breed or type. Look for uniformity of grade (fineness). Finer wools are permitted less variability.

  22. Soundness (strength)Tender wool is wool that is weak and/or breaks due to poor nutrition or sickness. This wool does not have a break or tender spot.

  23. PurityFreedom from pigmented fibers, hair and kemp. Black fiber/hairs HairKemp From a hair sheep The commercial wool market favors white wool that can be dyed any color.

  24. CharacterGeneral appearance of a fleece: crimp, handle, and color.

  25. Weathered tipsAffects dyeing “Tippy” wool

  26. Wool classingGrades at the Maryland Wool Pool Wool sold to the niche (specialty) markets typically brings a lot more money.

  27. Do you have any questions? I really love wool!

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