Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production

The sale of alpaca fiber is the main income for thousands of families in the Central Andes of Peru. Little information exists on the fiber length growth rate of alpaca (FLG), especially throughout their first year of life when the fiber is most valuable. We aimed to determine the monthly FLG of 22 a...

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Autores principales:	Quispe-Peña,EC, Poma-Gutiérrez,AG, McGregor,BA, Bartolomé-Filella,J
Lenguaje:	English
Publicado:	Facultad de Ciencias Veterinarias, Universidad Austral de Chile 2014
Materias:	alpaca staple length growth rate shearing
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0301-732X2014000100021
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spelling	oai:scielo:S0301-732X20140001000212015-10-30Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece productionQuispe-Peña,ECPoma-Gutiérrez,AGMcGregor,BABartolomé-Filella,J alpaca staple length growth rate shearing The sale of alpaca fiber is the main income for thousands of families in the Central Andes of Peru. Little information exists on the fiber length growth rate of alpaca (FLG), especially throughout their first year of life when the fiber is most valuable. We aimed to determine the monthly FLG of 22 alpaca offspring of two genotypes (9 Suri, 13 Huacaya) and considering sex differences (10 females, 12 males) in the High Andes of Peru. FLG growth was determined using dye-bands. An additive lineal model with three factors (genotype, sex, month) was used for statistic analysis. To evaluate the effect of genotype and sex on the profile of the FLG throughout the year a two factor repeated-measures model was used. The results showed that FLG was affected by genotype and month but not sex. The Suri genotype had 20% higher FLG than Huacaya genotype alpacas (1.34 vs 1.10 cm/month, P < 0.001). FLG increased over each of the first three months (P < 0.05) and then maintained a near constant rate for the remainder of the first year. The resulting staple length indicates that shearing at ages from 8 to 12 months of age will provide fleeces of sufficient length for textile processing.info:eu-repo/semantics/openAccessFacultad de Ciencias Veterinarias, Universidad Austral de ChileArchivos de medicina veterinaria v.46 n.1 20142014-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0301-732X2014000100021en10.4067/S0301-732X2014000100021
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	alpaca staple length growth rate shearing
spellingShingle	alpaca staple length growth rate shearing Quispe-Peña,EC Poma-Gutiérrez,AG McGregor,BA Bartolomé-Filella,J Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production
description	The sale of alpaca fiber is the main income for thousands of families in the Central Andes of Peru. Little information exists on the fiber length growth rate of alpaca (FLG), especially throughout their first year of life when the fiber is most valuable. We aimed to determine the monthly FLG of 22 alpaca offspring of two genotypes (9 Suri, 13 Huacaya) and considering sex differences (10 females, 12 males) in the High Andes of Peru. FLG growth was determined using dye-bands. An additive lineal model with three factors (genotype, sex, month) was used for statistic analysis. To evaluate the effect of genotype and sex on the profile of the FLG throughout the year a two factor repeated-measures model was used. The results showed that FLG was affected by genotype and month but not sex. The Suri genotype had 20% higher FLG than Huacaya genotype alpacas (1.34 vs 1.10 cm/month, P < 0.001). FLG increased over each of the first three months (P < 0.05) and then maintained a near constant rate for the remainder of the first year. The resulting staple length indicates that shearing at ages from 8 to 12 months of age will provide fleeces of sufficient length for textile processing.
author	Quispe-Peña,EC Poma-Gutiérrez,AG McGregor,BA Bartolomé-Filella,J
author_facet	Quispe-Peña,EC Poma-Gutiérrez,AG McGregor,BA Bartolomé-Filella,J
author_sort	Quispe-Peña,EC
title	Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production
title_short	Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production
title_full	Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production
title_fullStr	Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production
title_full_unstemmed	Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production
title_sort	effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production
publisher	Facultad de Ciencias Veterinarias, Universidad Austral de Chile
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0301-732X2014000100021
work_keys_str_mv	AT quispepenaec effectofgenotypeandsexonfibergrowthrateofalpacasfortheirfirstyearoffleeceproduction AT pomagutierrezag effectofgenotypeandsexonfibergrowthrateofalpacasfortheirfirstyearoffleeceproduction AT mcgregorba effectofgenotypeandsexonfibergrowthrateofalpacasfortheirfirstyearoffleeceproduction AT bartolomefilellaj effectofgenotypeandsexonfibergrowthrateofalpacasfortheirfirstyearoffleeceproduction
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Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production

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