External effects for the quantity and quality of fibre in Guanacos

J. Von Thüngen; R. Lheure; E. Seguineau De Preval; A. Perazzo

External effects for the quantity and quality of fibre in Guanacos

于Fibre production in South American camelids and other fibre animals

著者：

J. Von Thüngen

J. Von Thüngen
jvthungen@bariloche.inta.gov.ar

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R. Lheure

R. Lheure

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E. Seguineau De Preval

E. Seguineau De Preval

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A. Perazzo

A. Perazzo

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类型:: 章节

Page Range:: 41–49

DOI:: https://doi.org/10.3920/9789086867271_005

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The study is part of a project developing sustainable use for the guanaco (Lama guanicoe). The guanaco is a wild camelid living free on the Argentine Patagonian farms. Once a year, the animal is live captured, shorn and released, and its fibre sold. The objective is to define how the amount and the quality of fibre obtained per animal can vary. The impact of some external factors on these variables of economic interest has to be determined, which is the content of this study. Sampled guanacos were trapped live, shorn and permanently tagged between 2005 and 2008, fleece weighed and fleece samples of 10 cm² were taken from the shoulder during the captures. The analysed variables were mean fleece weight (MFW), average fibre diameter (AFD), and down yield (DY). AFD and DY were obtained using Sirolan-Laserscan (IWTO12) and the Hermann and Wortmann (1997) method validated by Sacchero and Mueller (2005) respectively. All the data have been compared statistically with mean-tests and mean-tests in pairs (P<0.05). Season, rainfall and previous shearing were analysed. Significant differences were detected for rainfall and previous shearing. No significant differences were found for season. Little information was available about the quality: only the effect of rainfall could be analysed. The results tend to show a constant yield and a smaller diameter of fibre in dry conditions as happens with other species. However, it is necessary to continue monitoring these effects as guanaco could be a good use of dry territories in Patagonia.

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Fibre production in South American camelids and other fibre animals

ISBN:: 9789086867271

出版社:: Wageningen Academic

印刷出版日期:: 30 Oct 2011

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

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External effects for the quantity and quality of fibre in Guanacos

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Fibre production in South American camelids and other fibre animals

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