By N A G Johnson, I Russell
Complex examine into wool technology and expertise is resulting in a greater realizing of the homes of wool. Wool is more and more being obvious as a excessive functionality fibre, with new transformations and purposes. Advances in wool know-how provides a complete account of those advancements and recommendations. half one comprises advances that experience happened within the creation and processing of wool. themes variety from the development in wool spinning, weaving and colouration, to environmental provide chain administration and to the position of genetic engineering in more desirable wool creation. half reports new wool items and purposes. Chapters comprise the construction of brighter and whiter wool, excessive functionality wool blends and wool for attire. With its individual editors and array of foreign participants, this ebook may be a helpful reference for manufacturers, brands, outlets and all these wishing to enhance and comprehend advancements in wool know-how. it's going to even be compatible for researchers in or academia.
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Additional info for Advances in Wool Technology (Woodhead Publishing in Textiles)
Indeed, wools from different sheep breeds maintain the basic structure of filament and matrix despite variation in protein composition. Hence it can be concluded that transgenic manipulation is a valid approach to obtaining changes in fibre composition by over-expression or under-expression of selected keratin genes. At present, only over-expression of a limited number of single genes in the wool cortex have been experimentally tested in transgenic sheep. The timing of gene expression in the cortex depends on the promoter that is linked to the gene to be expressed.
E. (1998). Expression of a wool intermediate filament keratin transgene in sheep alters fibre structure. Transgenic Res 7, 1–15. BAWDEN, C. , MCLAUGHLAN, C. , PENNO, N. , WALKER, S. , HYND, P. , and ROGERS, G. E. (2000). Genetic manipulation to modify wool properties and fibre growth rate. Proc NZ Soc Anim Production 60, 147–154. BRINSTER, R. , CHEN, H. , TRUMBAUER, M. , YAGLE, M. , SENEAR, A. , and PALMITER, R. D. (1981). Somatic expression of herpes thymidine kinase in mice following injection of a fusion gene into eggs.
Similarly 70% of Australian wool is measured for staple length and strength whereas only a minor proportion is measured in New Zealand. Some of these parameters assume different importance depending upon the breed of sheep from which the wool is harvested and the commercial requirements in the country of origin. Other, non-certified information, such as mean fibre curvature (MFC), vegetable matter base (VMB) broken down into burrs, seed and shive (as well as hard heads and twigs), along fibre fineness profile, and dark and medullated fibre is also available.