J. Anim Sci.
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J. Anim Sci. 1965. 24:5-8.
© 1965 American Society of Animal Science
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Evaluation of a Method of Measuring Staple Crimp of Grease Locks from Individual Fleeces

Mary E. Hourihan1, Walter R. Harvey2 and Clair E. Terrill1,3,

United States Department of Agriculture

Abstract

SELECTION programs in wool production are based on information obtained from scoring or measuring traits of sheep and fleeces. To determine the value of crimp in selection of breeding animals, it is necessary to have an objective method for measuring crimp in staples of grease wool. According to Barker (1931) most of the early workers devised various ways of determining the number of crimps along one inch of staple, usually as an indication of fineness, while a few workers attempted to classify crimp in grease wool by descriptive terms. A review of measurement of crimp in wool (Anonymous, 1953) indicated that a prohibitive amount of measuring was required to classify crimp based on the distances between successive crests and troughs of strands of wool, although no studies were cited as having been undertaken to determine the amount of measuring required. Neale and McFadden (1953) and LeRoux and Burns (1956) showed that crimp can be classified visually by comparing measured and visual data.

Footnotes

1 Sheep and Fur Animal Research Branch, Animal Husbandry Research Division, ARS, U.S.D.A., Beltsville, Maryland.

2 Biometrician, Livestock Research Staff, ARS, U.S.D.A., Beltsville, Maryland.

3 Acknowledgment is made to Donald L. Christian and Joseph A. King, formerly Fiber Technicians in the Sheep and Fur Animal Research Branch, ARS, U.S.D.A., for measurement of the crimp.






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Copyright © 1965 by the American Society of Animal Science.