Edgar Carlos Quispe Peña - Academia.edu (original) (raw)
Uploads
Papers by Edgar Carlos Quispe Peña
RESUMEN Se evaluaron cinco características tecnológicas de la fibra de llama: diámetro me-dio de ... more RESUMEN Se evaluaron cinco características tecnológicas de la fibra de llama: diámetro me-dio de fibra (MDF), coeficiente de variación de MDF (CVMDF), factor de confort (FC), índice de curvatura (IC) y finura al hilado (FH) antes y después de descerdar. Se tomaron muestras de 10 g de fibra de vellones de 227 llamas Chaku de la región Apurímac, Perú. Las fibras sin descerdar y descerdadas fueron analizadas con el equipo OFDA 2000 (Optical Fibre Diameter Analyser). Se consideraron las variables sexo y edad (1-2, >2 años) en el análisis estadístico a través de un diseño completamente al azar con arreglo factorial. Los resultados indican que la fibra descerdada es de mejor calidad, disminuyendo la MDF (0.70 µm), el CVMDF (1.8%) y la FH (1.06 µm) e incrementando el FC (2.74%) y el IC (4.66°/mm). Asimismo, el sexo no tuvo un efecto significativo en las características tecnológicas de la fibra pero las llamas juveniles presentaron mejor calidad de fibra. Se concluye que el descerdado y la edad de la llama tienen efectos significativos sobre la finura y su variación, el factor de confort, el índice de curvatura y la finura al hilado. ABSTRACT Five technological characteristics of llama fiber were evaluated: average fibre diameter (AFD), the coefficient of fibre diameter (CVD), the comfort factor (CF), the fibre curvature (FC) and the spinning fineness (SF) before and after dehairing. Fibre samples (10 g) were collected from fleece of 227 llamas Chaku from the Apurimac region of Peru. Fiber samples before and after dehairing were analyzed with the OFDA 2000
More than onemillion smallholders in the Andean region of central South America exploit alpacas (... more More than onemillion smallholders in the Andean region of central South America exploit alpacas (Vicugna pacos) and lamas (Lama glama) as theirmainmeans of subsistence.Alpacas and lamas provide meat,milk, fibre, power and guano; in addition it is an important element of the cultural identity of their producers. With 3.9 million lamas and 3.3 million alpacas the total annual fibre production in the region exceeds 5
million kg. Nearly 30% of the fibre production is transformed on-farm or at the community level. About 80% of the marketed alpaca fibre is white and 12% is finer than23microns.Lama fibres have less value and aremore variable in colours and fibre diameter than alpaca fibres.Both
species of camelids have two breeds, each one with specific adaptation and fibre quality characteristics. Two wild species of camelids exist in SouthAmerica: the guanaco (Lama guanicoe) and the vicuna (Vicugna vicugna). Both have fleeceswith precious down fibres. Specific populations
of these camelids are qualified to be captured, sheared and released, providing an additional income to the communities in which they live. Due to support to improve the production of fibre and other products of South American camelids, while preserving a valuable animal genetic resource, the cultural values of the associated production systems, and improving the livelihoods of resource-poor smallholders should be part of a global strategy involving a sustained investment in appropriate R&D.
RESUMEN Se evaluaron cinco características tecnológicas de la fibra de llama: diámetro me-dio de ... more RESUMEN Se evaluaron cinco características tecnológicas de la fibra de llama: diámetro me-dio de fibra (MDF), coeficiente de variación de MDF (CVMDF), factor de confort (FC), índice de curvatura (IC) y finura al hilado (FH) antes y después de descerdar. Se tomaron muestras de 10 g de fibra de vellones de 227 llamas Chaku de la región Apurímac, Perú. Las fibras sin descerdar y descerdadas fueron analizadas con el equipo OFDA 2000 (Optical Fibre Diameter Analyser). Se consideraron las variables sexo y edad (1-2, >2 años) en el análisis estadístico a través de un diseño completamente al azar con arreglo factorial. Los resultados indican que la fibra descerdada es de mejor calidad, disminuyendo la MDF (0.70 µm), el CVMDF (1.8%) y la FH (1.06 µm) e incrementando el FC (2.74%) y el IC (4.66°/mm). Asimismo, el sexo no tuvo un efecto significativo en las características tecnológicas de la fibra pero las llamas juveniles presentaron mejor calidad de fibra. Se concluye que el descerdado y la edad de la llama tienen efectos significativos sobre la finura y su variación, el factor de confort, el índice de curvatura y la finura al hilado. ABSTRACT Five technological characteristics of llama fiber were evaluated: average fibre diameter (AFD), the coefficient of fibre diameter (CVD), the comfort factor (CF), the fibre curvature (FC) and the spinning fineness (SF) before and after dehairing. Fibre samples (10 g) were collected from fleece of 227 llamas Chaku from the Apurimac region of Peru. Fiber samples before and after dehairing were analyzed with the OFDA 2000
More than onemillion smallholders in the Andean region of central South America exploit alpacas (... more More than onemillion smallholders in the Andean region of central South America exploit alpacas (Vicugna pacos) and lamas (Lama glama) as theirmainmeans of subsistence.Alpacas and lamas provide meat,milk, fibre, power and guano; in addition it is an important element of the cultural identity of their producers. With 3.9 million lamas and 3.3 million alpacas the total annual fibre production in the region exceeds 5
million kg. Nearly 30% of the fibre production is transformed on-farm or at the community level. About 80% of the marketed alpaca fibre is white and 12% is finer than23microns.Lama fibres have less value and aremore variable in colours and fibre diameter than alpaca fibres.Both
species of camelids have two breeds, each one with specific adaptation and fibre quality characteristics. Two wild species of camelids exist in SouthAmerica: the guanaco (Lama guanicoe) and the vicuna (Vicugna vicugna). Both have fleeceswith precious down fibres. Specific populations
of these camelids are qualified to be captured, sheared and released, providing an additional income to the communities in which they live. Due to support to improve the production of fibre and other products of South American camelids, while preserving a valuable animal genetic resource, the cultural values of the associated production systems, and improving the livelihoods of resource-poor smallholders should be part of a global strategy involving a sustained investment in appropriate R&D.