Genetic parameters for coat characteristics in Bolivian llamas

M. Wurzinger; J. Delgado; M. Nürnberg; A. Valle Zárate; A. Stemmer; G. Ugarte; J. Sölkner

Genetic parameters for coat characteristics in Bolivian llamas

In: South American camelids research

Authors:

M. Wurzinger

M. Wurzinger ¹BOKU-University of Natural Resources and Applied Life Sciences, Vienna, Department of sustainable agricultural systems, Gregor-Mendel-strasse 33, A-1180 Vienna, Austria.

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J. Delgado

J. Delgado ²University Hohenheim, Institute of livestock production in the tropics and subtropics, Garbenstrasse 17, D-70599 Stuttgart, Germany.

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M. Nürnberg

M. Nürnberg ²University Hohenheim, Institute of livestock production in the tropics and subtropics, Garbenstrasse 17, D-70599 Stuttgart, Germany.

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A. Valle Zárate

A. Valle Zárate ²University Hohenheim, Institute of livestock production in the tropics and subtropics, Garbenstrasse 17, D-70599 Stuttgart, Germany.

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A. Stemmer

A. Stemmer ³Universidad Mayor de San Simón, Cochabamba, Bolivia.

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G. Ugarte

G. Ugarte ⁴Asociación de Servicios Artesanales y Rurales Asar, Cochabamba, Bolivia.

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, and

J. Sölkner

J. Sölkner ¹BOKU-University of Natural Resources and Applied Life Sciences, Vienna, Department of sustainable agricultural systems, Gregor-Mendel-strasse 33, A-1180 Vienna, Austria.

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Type:: Chapter

Pages:: 77–85

DOI:: https://doi.org/10.3920/978-90-8686-576-5_009

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Llamas display a great variability of fibre traits that determine the quality of the fleece as raw material for textiles. Little research has been conducted on the extent of this variability, although it is important for optimal use of natural resources in the Andean region. Fibre samples of 1,869 llamas were analysed with the optical fibre diameter analyser (OFDA). The following traits were considered: Mean fibre diameter (MFD), standard deviation (SD), diameter of fine fibre (DFF), proportion of fine fibre (PFF), proportion of kemp (PK) and proportion of medullated fibre (PMF). The effects of type of llama, age, sex and coat colour were studied. The type of llama influences all traits showing that Th´ampulli (fibre type) is better than Kh´ara (meat type). With increasing age of the animal MFD, SD, DFF and PK increased whereas PFF decreased. Comparing the two sexes, females showed better fibre quality. Light coat colours tend to be of better quality than darker ones. Heritabilities and genetic correlations were estimated using animal model procedures where all information came from mother-offspring relationships. Heritability estimates were 0.33, 0.28, 0.36, 0.32 and 0.25 for MFD, SD, DFF, PFF and PK, indicating potential for genetic selection.

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South American camelids research

Volume 1

E-Book ISBN:: 9789086865765

Publisher:: Wageningen Academic

Print Publication Date:: 01 Nov 2006

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

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Genetic parameters for coat characteristics in Bolivian llamas

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South American camelids research

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