Bibliographic citations
Valdivia, V., (2009). Relación entre la condición corporal y edad con la calidad de fibra y longitud de mecha del vellón de alpaca huacaya [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/726
Valdivia, V., Relación entre la condición corporal y edad con la calidad de fibra y longitud de mecha del vellón de alpaca huacaya [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2009. https://hdl.handle.net/20.500.12672/726
@misc{renati/1208160,
title = "Relación entre la condición corporal y edad con la calidad de fibra y longitud de mecha del vellón de alpaca huacaya",
author = "Valdivia Rodríguez, Verónica María",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2009"
}
Six thousands seven hundred fifteen alpacas (lama pacos), raised on native pasture located over 4 000 m of altitude, were used to study the effect of three range of body condition score (1.5-2, 2.5-3 and ≥3.5) and of four ages (1-2, 3, 4 and >4) on the quality and staple length of the fleece. On the shoulder, middle side and hip of the animal body was tested the fleece quality and subjectively classified as fine, medium and coarser. Staple length was measured on the middle side with a ruler from skin level to staple tip and the results were classified, according to the textile industry requirement, into two groups, one in short staples (less 7 cm) and the second in large staples (≥ 7 cm).The effect of body condition score and age on staple length and fleece quality was tested by analysis of variance and Chi square respectively. There only was a significant effect in those alpacas with staple length ≥7 cm (P less 0.01), where those of one and two year old showed the longest staple length (10.56 ± 2.23 cm), afterward, decreased in the oldest age and increased as the body condition score increased; however, there was an associative effect between age and body condition score from three years old onward, showing the longest staple length those with more age and higher body condition score (P less 0.05). Regarded to fleece quality, the percentage of alpaca with fine fleece decreased as the age increased and inversely increased the coarse fleece; however, there wasn’t an effect of body condition score within each fleece quality. The Results showed a significant effect of age and body condition scores on staple length; meanwhile, the quality of fleece only was influenced by age.
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