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

Quispe-Peña,EC, Poma-Gutiérrez,AG, McGregor,BA and Bartolomé-Filella,J 2014, Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production, Archivos de Medicina Veterinaria, vol. 46, no. 1, pp. 139-142, doi: 10.4067/S0301-732X2014000100021.

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Title Effect of genotype and sex on fiber growth rate of alpacas for their first year of fleece production
Author(s) Quispe-Peña,EC
Poma-Gutiérrez,AG
McGregor,BAORCID iD for McGregor,BA orcid.org/0000-0002-4574-4236
Bartolomé-Filella,J
Journal name Archivos de Medicina Veterinaria
Volume number 46
Issue number 1
Start page 139
End page 142
Total pages 4
Publisher Universidad Austral de Chile
Place of publication Valdivia, Chile
Publication date 2014
ISSN 0301-732X
0717-6201
Keyword(s) Alpaca
Growth rate
Shearing.
Staple length
Science & Technology
Life Sciences & Biomedicine
Veterinary Sciences
shearing
MERINO SHEEP
ATTRIBUTES
DIAMETER
Summary 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.
Language eng
DOI 10.4067/S0301-732X2014000100021
Field of Research 070202 Animal Growth and Development
Socio Economic Objective 830307 Minor Livestock (e.g. Alpacas, Ostriches, Crocodiles, Farmed Rabbits)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Universidad Austral de Chile
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069691

Document type: Journal Article
Collections: Institute for Frontier Materials
Open Access Collection
GTP Research
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.