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Computer-assisted image analysis for the comparison of sampling methods for assessing wool properties in Arkharmerino × Ghezel crossbreed sheep

Published online by Cambridge University Press:  22 November 2017

J Shoja
Affiliation:
University of Tabriz, Tabriz, East Azarbaijan, Islamic Republic of Iran
H Esfandyari*
Affiliation:
University of Tabriz, Tabriz, East Azarbaijan, Islamic Republic of Iran
S A Rafat
Affiliation:
University of Tabriz, Tabriz, East Azarbaijan, Islamic Republic of Iran
M Dorostkar
Affiliation:
University of Tabriz, Tabriz, East Azarbaijan, Islamic Republic of Iran
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Extract

Usually investigations on wool properties are carried out using classical instruments like a Projection Microscope at wool laboratories in Iran. It is readily acknowledged that the Projection Microscope is of limited usefulness. Firstly, it is a very slow and labour intensive technique. Secondly, it is very imprecise when a single operator conducts measurements within one laboratory. Image analysis presents a quick, reliable, unbiased technique for determining wool properties (Rose and Debra, 2001). The application of computer-assisted image analysis to the measurement of wool properties potentially enables a significant reduction in the counting time for each sample. Recently in Iran, coarse-mixed wools have been valued and used in similar areas as finer wools. Coarse-mixed wools can be blended with artificia1 fibres to produce high valued clothes. They are also used widely in carpet production. This is why, in Iran, carpet wool breeds of increasing fleece weight is a main selection target, with improvement of fineness and uniformity as the next most important. Typically small samples from the whole fleece are taken using a scissors. The samples can be taken from six regions, i.e. neck, back, hip, shoulder, flank and rump, however usually they are taken from three regions, namely the shoulder, last rib and rump, in breeds with coarse-mixed wools. These sampling methods cause loss of time and require more labour. In this research, two methods of sampling the Arkharmerino × Ghezel fleece were compared. Sampling from only over the right mid-side, as occurs in fine wool breeds was compared with taking samples from three regions (shoulder, last rib and rump).

Type
Theatre Presentations
Copyright
Copyright © The British Society of Animal Science 2009

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References

A.S.T.M. 2001. Standard Test Method for Diameter of Wool and Other Animal Fibers by Image Analyzer. D2968-95.Google Scholar
Rose, M.L., Debra, A. 2001. Textile Research Journal. 64, 534–544.Google Scholar
Farahvash, T., Shodja, J., Golzaradabi, S., Davudi, J. 2007. Journal of Agri. New. Cultural. Sci. 8, 45–52.Google Scholar
Mokhber, M. 2006. MSc Thesis, Uni. of Tabriz, Iran.Google Scholar