Comparison of Fiber and Cuticular Attributes of Alpaca and Llama Fleeces

A. Valbonesi, S. Cristofanelli, F. Pierdominici, M. Gonzales, M. Antonini

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Forty alpaca kids, comprising 20 huacaya and 20 suri, and 20 llama “chaku” (or woolly type), were chosen for a comparative investigation of the fiber and cuticular attributes based on fiber diameter, number of cuticular scales per 100 µm of fiber length, and scale height. Out of the three parameters investigated, the number of cuticular scales proved to be a valid diagnostic trait in distinguishing suri fleece from both huacaya and llama fleeces. A further characterization of the suri fleece was obtained by considering the frequency distribution of both fiber diameter and number of cuticular scale classes. The suri fleece was clearly different from both the huacaya and llama in that it possessed the highest percentage of fibers with less than eight scales, the lowest percentage of fibers with more than nine scales, along with the lowest percentage of fibers with a diameter of more than 35 µm. The validity of these classification criteria was fully supported by a classification discriminant analysis based on the jointed investigation of the data related to scale and diameter frequency classes, whose output was a 100% correct classification of the suri specimens along with an 85.7% and 71.4% of cases correctly classified in huacaya and llama, respectively. © 2010, SAGE Publications. All rights reserved.
Original languageEnglish
Pages (from-to)344 - 353
Number of pages10
JournalTextile Reseach Journal
Issue number4
Publication statusPublished - 2010
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics

Cite this

Valbonesi, A., Cristofanelli, S., Pierdominici, F., Gonzales, M., & Antonini, M. (2010). Comparison of Fiber and Cuticular Attributes of Alpaca and Llama Fleeces. Textile Reseach Journal, 80(4), 344 - 353.