Objective evaluation of fineness and resistance characteristics in fleeces of Ch'aku llama (Lama glama)
The aim of this study was to determine the relationship between fineness characteristics and resistance of Ch’aku llama fleeces. Seventy-six llamas from the breeding stock of the South American Camelids Research Center -CICAS- La Raya, Peru were sampled. Fibre fineness characteristics were determined (Average Fibre Diameter [MDF, µm], Variability Coefficient of Average Fibre Diameter [CVMDF,%], Comfort Factor [FC,%], Curvature, curl [CRV, °/mm], Spinning Fineness [SF, µm]) in an Optical Fibre Diameter Analyzer (OFDA 2000®) and fleece strength characteristics (Staple Length [LM, mm], Resistance to Traction [RT, N / ktex], and Position of Break [POB,%]) using the Staple Length and Strength Instrument (SL&SI). A randomized complete design with a factorial arrangement was used, using parametric and non-parametric tests. The results indicated effect of sex, age and sex*age, on the characters under study (p<0.05), where the best fineness is attributed to female llamas, 2-3 year old llamas and 2-3 year old female llamas; however, the highest LM and RT corresponds to male llamas (10.28 cm and 69.11 N/ktex, respectively), and the lowest in animals >5 years (57.61 N/ktex). The POB close to 50% is undesirable due to the thinning in a period of biennial fibre growth. Significant correlation was found between fineness characteristics and limited with resistance characteristics. The fibre of Ch’aku llamas in the CICAS-La Raya has important characteristics of fineness and resistance, but without linking between both types of characteristics.
| Main Authors: | , , , , , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
2020
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| Online Access: | https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/17823 |
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