Relationship between pigmented fibre in raw and processed wool when other dark fibre is controlled - A review

International Journal of Sheep and Wool Science

Volumn 56, Issue 1, 2008, Pages 39-59

  Fleet, Malcolm R ^a   Fouldsy, Roger A ^b   Maharz, Trevor J ^c   Turk, Judith A ^d  

^a SOUTH AUSTRALIAN RESEARCH AND DEVELOPMENT INSTITUTE   (Australia)

^b CSIRO   (Australia)

^c Australian Wool Testing Authority Ltd   (Australia)

^d Judy Turk Consulting   (Australia)

Author keywords

Contamination; Dark; Fibre; Pigmented; Processing; Wool; Worsted

Indexed keywords

OVIS ARIES;

EID: 78650200151     PISSN: None     EISSN: 18328679     Source Type: Journal    
DOI: None     Document Type: Review

References (78)

1. ABARE (1995) An economic assessment of the introduction of the Dorper and Damara sheep breeds into Australia. Prepared for the Agricultural and Resources Management Council of Australia and New Zealand (ABARE).
2. Anon (1965) The Corriedale. Australian Stud and Farm Monthly. p I-VIII.
3. Appleyard, H.M. and Adele Perkin, M.E. (1965) Identification of short animal fibres appearing as contaminants of wool cloth. Letter to the Editor. Journal of the Textile Institute, 56: T45-T47.
4. Atkinson, K. (1996) Combing the fragile fibres. In: Proceedings of Papers from Top-Tech' 96 (CSIRO, IWS) pp 30-32.
5. AS 4054 (1992). Scourable branding substances for greasy wool. Standards Australia AS 4054-1992 and Ammendment No. 1/1995 (http://www.saiglobal.com/shop/Script/search.asp).
6. Austin, H.B. (1943) 'The Merino - past, present and probable' (Grahame Book Co.; Sydney, NSW). p 31.
7. AWEX (2007) Code of Practice for the AWEX Quality System. Preparation of Australian Wool Clips. The Woolclasser (Australian Wool Exchange Limited; Sydney) www.awex.com.au (2008)
8. AWEX (2008a) Changes in test certificate definitions. BOARDtalk the Australian Woolclassing Journal, March 2008. p1. www.awex.com.au (2008).
9. AWEX (2008b). National Wool Declaration - Declaring what the world is now demanding, Australian Wool Exchange Brochure. Available at http://www.awex.com.au/scripts/nc.dll?AWEX.20513482:STANDARD:305328380:pc=PC_46 (2008).
10. AWI (2003) The AWI 2003 non-wool contamination survey. Australian Wool Innovation Ltd report. pp 1-29 (www.wool.com.au).
11. AWI (2008a) Progress in developing alternatives to mulesing. Beyond the Bale. Issue 33, p 6-7 (Australian Wool Innovation Ltd; www.wool.com.au).
12. AWI (2008b) Mills support DMFR scheme. Beyond the Bale. Issue 33, p 3 (Australian Wool Innovation Ltd; www.wool.com.au).
13. AWTA Ltd, CSIRO and AWI (2004) Development of an improved test for detection of dark and medullated fibres in presale core samples. International Wool Textile Organisation, Technology and Standards Committee, Shanghai Meeting Report No. RWG 5. http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
14. Balasingam, A. and Mahar, T.J. (2005a) Status report on the dark and medullated fibre testing of presale core samples and review of the detection threshold for contaminant medullation. IWTO, T&S Committee, Hobart, Report RWG 4. Available at
15. http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
16. Balasingam, A. and Mahar, T.J. (2005b) Determination of the contaminant threshold level for medullated fibres in Merino wool fabrics. IWTO, T&S Committee, Biella, Report CTF01. Available at http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
17. Balasingam, A., Mahar, T.J., Fish, V.E., Alaya-ay, A. and Fleet, M.R. (2007) The relationship between greasy and processed dark fibre contamination from exotic sheep breeds of commercial Merino wool sale lots. IWTO, T&S Committee, Edinburgh Meeting, Report CTF02.
18. Bereck, A., Zahn, H. and Schwartz, S. (1982) Selective bleaching of pigmented hairs in white raw wool. English translation in Textile Praxis International, June, p VX-XX.
19. Burbidge, A., McInnes, C.B. and Foulds, R.A. (1991) Development and preliminary evaluation of the CSIRO Dark Fibre Risk scheme for individual sale lots for Australian wool. International Wool Textile Organisation Meeting, Portugal Report No 12.
20. Burbidge, A. and McInnes, C.B. (1994) Proceedings of a Seminar, Specification of Australian Wool and its Implications for Marketing and Processing (WOOLSPEC94). (CSIRO and IWS; Ryde N.S.W.) N1-N7.
21. Burbidge, A., McInnes, C.B., Brown, G.H., Foulds, R.A. and Stephens, L. (1994) Interlaboratory trial to evaluate IWTO(E)-13-88(E) and processed dark fibre contamination from Damara crossbred lambs in Merino wool. IWTO T&S Committee, New Delhi Meeting, Report 22, 1-18.
22. Cardellino, R. (1978) Incidence of pigmented fibres in Uruguayan wools. Boletin Technico, Secretariado Uruguayan de la Lana, No. 3, p 43-44.
23. Cardellino, R. (1992) Herencia de las fibras coloreadas. In: Seminario Sobre Mejoramiento Genetico en lanas (Secretariado Uruguayo de la Lana, Uruguay) pp 99-115.
24. DRAFT TM-13-01 EA {Formerly IWTO(E)-13-88} Counting of Coloured Fibres in Tops by the Balanced Illumination Method. Specification of the International Wool Textile Organisation.
25. DR 03079 (2003) Scourable branding substances for greasy wool. Revision of AS 4054-1992. Draft for public comment. Standards Australia and New Zealand (http://www.saiglobal.com/shop/Script/search.asp).
26. Elphick, B.L. (1932) A simple test for the detection of hairiness in the fleece - with a note on fleece sampling. Massey Agricultural College, Bulletin No. 3.
27. Fleet, M.R. and Forrest, J.W. (1984) The occurrence of spots of pigmented skin and pigmented wool fibres in adult Merino sheep. Wool Technology Sheep Breeding, 32: 83-90. (http://sheepjournal.une.edu.au/sheepjournal/)
28. Fleet, M.R., Stafford, J.E. and Dolling, C.H.S. (1984) A note on the occurrence of isolated melanin pigmented fibres in the white fleece wool of Corriedale sheep. Animal Production, 39: 311-314.
29. Fleet, M.R., Stafford, J.E., Dawson, K.A. and Dolling, C.H.S. (1986) Contamination of white wool by melanin pigmented fibres when pigmented and white sheep graze together. Australian Journal Experimental Agriculture, 26: 159-163. (www.publish.csiro.au)
30. Fleet, M.R. and Foulds, R.A. (1988) Isolated pigmented fibres in fleeces and tops. Wool Technology and Sheep Breeding, 36: 76-81. (http://sheepjournal.une.edu.au/sheepjournal/).
31. Fleet, M.R. and Stafford, J.E. (1989) The association between non-fleece pigmentation and fleece pigmentation in Corriedale sheep. Animal Production, 49: 241-247.
32. Fleet, M.R., Pourbeik, T., Mortimer, S.I., Ponzoni, R.W. and Rogan, I.M. (1991a) Heritabilities and phenotypic correlations for pigment traits in Peppin Merino sheep. Proceedings Australian Association Animal Breeding Genetics, 9: 400-403. Available at http://www.livestocklibrary.com.au/ (2008).
33. Fleet, M.R., Smith, D.H. and Pourbeik, T. (1991b) Age-related changes in pigmentation traits in Merino sheep. Wool Technology Sheep Breeding, 39: 26-36. (http://sheepjournal.une.edu.au/sheepjournal/)
34. Fleet, M.R., Hynd, P.I., Gallagher, J.R. (1995a) Pigmented fibre concentration in the skirted hogget Merino fleece after culling on visible pigmentation. Australian Association of Animal Breeding and Genetics, 11: 318-322. Available at http://www.livestocklibrary.com.au/ (2008).
35. Fleet, M.R., Foulds, R.A., Pourbeik, T., McInnes, C.B., Smith, D.H. and Burbidge A. (1995b) Pigmentation relationships among young Merino sheep and their tops. Australian Journal of Experimental Agriculture, 35: 343-351. (www.publish.csiro.au).
36. Fleet, M. R. (1996) Pigmentation types - understanding the heritability and importance. Wool Technology and Sheep Breeding, 44: 264-280. (http://sheepjournal.une.edu.au/sheepjournal/)
37. Fleet, M.R., Pourbeik, T, Ancell, P.M. and Lynch, B.E. (1997) Sire effects on visible pigmentation in a Corriedale flock. Wool Technology and Sheep Breeding, 45: 167-173. (http://sheepjournal.une.edu.au/sheepjournal/)
38. Fleet, M.R. (1998) Dark fibre control in sheep and wool. PIRSA/SARDI Fact sheet Agdex 437/30 www.pir.sa.gov.au/factsheets; Prime Notes CD; http://www.sardi.sa.gov.au/pages/livestock/meat_and_wool/dark_fibre_control_in_sheep_and_wool.pdf and http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
39. Fleet, M.R. (1999) Wool contamination - pigmented and heavily medullated fibres. PIRSA/SARDI Fact sheet Agdex 437/85: www.pir.sa.gov.au/factsheets; Prime Notes CD-Rom (QDPI); http://www.sardi.sa.gov.au/pdfserve/livestock/meat_and_wool/integrated_production/wool_contamination.pdf, http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
40. Fleet, M.R., Turk, J.A., Cottell, M.A. and Keynes, G.N. (2001) Merino wool contamination from rearing of Damara crossbred lambs. Australian Journal of Experimental Agriculture, 41: 725-731.
41. Fleet, M.R. (2002) Comparison of dark fibre discounts. BOARDtalk the Australian Woolclassing Journal, November 2002 (Australian Wool Exchange; Sydney; www.awex.com.au) p3.
42. Fleet, M.R., Fulwood, W.K., Fotheringham, A.S. and Bennie, M.J. (2002a) Factors affecting Merino wool contamination in crossbreeding. Australian Journal of Experimental Agriculture, 42: 535-540.(www.publish.csiro.au).
43. Fleet, M.R., Mahar, T.J., Denney, S.I. (2002b) The detection of pigmented and medullated fibres in core samples of commercial sale lots from Merino ewes mated to Damara fat tail rams. Wool Technology and Sheep Breeding, 50: 92-101. (http://sheepjournal.une.edu.au/sheepjournal/)
44. Fleet, M.R., Mahar, T.J. and Turk, J.A. (2002c) Merino crossbreeding and objectionable sheep fibres: the problem and potential solution. Wool Technology and Sheep Breeding, 50: 650-656.(http://sheepjournal.une.edu.au/sheepjournal/)
45. Fleet, M.R., Forrest, J.W., Walker, S.K., Rogers, G.E. (2004) Foetal development of melanocyte populations in Merino wool-bearing skin. Wool Technology and Sheep Breeding, 52: 101-123.(http://sheepjournal.une.edu.au/sheepjournal/)
46. Fleet, M.R. (2006) Development of black pigmented skin spots and pigmented wool fibres in a Merino flock - causes, field observations, and wool measurement. Australian Journal of Agricultural Research, 57: 751-760. (www.publish.csiro.au)
47. Fleet, M.R., Alaya-ay, A. and Mahar, T.J. (2006a) Relationship between greasy and processed dark fibre contamination from Damara crossbred lambs in Merino wool. IWTO T&S Committee, Cairo Meeting Report CTF 2. Pp 1-12. Available at Available at http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
48. Fleet, M.R., Fish, V.E., Alaya-ay A.R. and Mahar, T.J. (2006b) Dark and medullated fibre contamination in Merino fleece from Damara crossbred lambs: Top and noil products. IWTO T&S Committee, Xi'an Meeting, Report CTF 1. pp 1-9. Available at http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
49. Fleet, M.R., Mahar, T.J., Alaya-ay, A.R., Fish, V.E. and Balasingam, A. (2007) Towards a reliable test for predicting wool contamination and impacts on processing. SARDI Information sheet on the outcomes of the AWI, TD015 project. Available at http://www.sardi.sa.gov.au/pdfserve/livestock/meat_and_wool/integrated_production/070502_flyer.pdf (2008).
50. Foulds, R.A., Wong, P. and Andrews, M.W. (1984) Dark fibres and their importance. Wool Technology Sheep Breeding, 32: 91-100.(http://sheepjournal.une.edu.au/sheepjournal/)
51. Foulds, R.A. (1988). Identification and measurement of dark fibre and vegetable matter contamination in wool and textile products. In: Proceedings of the Textile Institute Annual World Conference. Sydney (Textile Institute, Manchester, UK).
52. Foulds, R.A. (1989) Dark fibre control in wool: Its prediction and ramifications. Wool Technology and Sheep Breeding 37: 33-37.(http://sheepjournal.une.edu.au/sheepjournal/). Also available at http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
53. Hansford, K.A. and Morgan, P. (2003) Managing the risk of dark and/or medullated fibre contamination. Project EC573 final report (Australian Wool Innovation Ltd.; www.wool.com.au) pp 1-60. Available at http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
54. Hansford, K.A. and Australian Industry Working Group (2003) The development of a quantified risk factor for the presence of dark and medullated fibres in Australian Merino wool. International Wool Textile Organisation, Technology and Standards Committee, Istanbul Meeting, Report No. RWG 7. Available at http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
55. Hansford, K.A. and Swan, P.G. (2005) Australian Wool Innovation 2004 Global Survey of Dark and Medullated fibres. International Wool Textile Organisation - Technology and Standards Committee. Commercial Technology Forum. Report CTF 02. Biella Meeting, November 2005. Available at http://www.awta.com.au/en/Home/Publications/Research-Papers1/Wool-Contamination-/Post.aspx (2008).
56. Harrowfield, B.V. (1987) Early stage worsted processing from scoured wool to top. Wool Science Review, 64: 44-80.
57. Hatcher, S., Foulds, R.A., Lightfoot, R.J. and Purvis, I.W. (1999) The relative wool contamination potential of Awassi and black Merino sheep when penned together with white Merinos. Australian Journal of Experimental Agriculture, 39: 519-528. (www.publish.csiro.au)
58. Horton, B.J. and Iles, L. (2007) Dag scores and mean crutching and shearing period for mulesed and unmulesed weaners. International Journal of Sheep and Wool Science, 55: 48-64. http://sheepjournal.une.edu.au/sheepjournal/
59. Hoschke, B. N. and Smith, L. J. (1982) Mini-Processing as an Assessment Technique. Journal of the Textile Institute, 73: 164.
60. IWTO-55-99 Method of Automatic Counting & Classifying Cleanliness Faults in Tops using the Optalyser Instrument. Specification of the International Wool Textile Organisation.
61. Johnston, A. and Larson, T. (1957) Black fibres and white kemps in Wyoming wools. Mimeograph Circular No. 74. University of Wyoming Agricultural Experimental Station pp 1-18.
62. Karlsson, J., Murray B., Greeff, J., Underwood, N., Hambley, C. and Bunker, G. (2007) Easy care sheep - selecting for breech strike resistance. Ovine Observer Number 40 (Western Australian Department of Agriculture and Food). Available at http://www.livestocklibrary.com.au/ (2008).
63. Kremer, R., Urioste, J.I., Naya, H., Rosés, L., Rista, L. and López, C. (2003) Incidence of skin spots and pigmentation in Corriedale sheep. World Congress Animal Production, Porto Alegre, Brasil. October 26-31, 2003.
64. Lightfoot, R.J. (1993) Awassi fat tail sheep - an opportunity for diversification. A report by the Western Australian Department of Agriculture on behalf of the Awassi Sheep Joint Venture pp 1-136.
65. MLA (2008) National Livestock Identification System. www.mla.com.au/TopicHierarchy/IndustryPrograms (2008)
66. Mendoza, A.J. and Maggiolo, J. (1999) Cuánto importa la calidad en la lana. Lana Nocticias, SUL (Seretaridao, Urugayo de la Lana, Uruguay) p 37-41.
67. Pienado, G., Cardellino, R.C. and Mendoza, J. (1998) The future demand for Corriedale wool from the viewpoint of the wool exporters. Produccion Ovina, 11: 63-77.
68. Read, S. (1995) Meeting a spinner's requirement. Wool Technology and Sheep Breeding, 43: 318-322. (http://sheepjournal.une.edu.au/sheepjournal/)
69. Robinson, G. (1996) Carding: Fibre Breakage. In: Proceedings of Papers from Top-Tech' 96 (CSIRO, IWS) pp 30-32.
70. Ryan, M. (2006) 'The implicit market for characteristics of Merino wool: An hedonic approach'. Thesis prepared in partial fulfilment of B Agric. Econ., University of Sydney. Available at http://www.awex.com.au/scripts/nc.dll?AWEX.20513482:STANDARD:1447337030:pc=PC_(2008).
71. Ryan, M., Hicks, L. and Lyons, B. (2007) Branding fluid analysis project: Findings. Australian Wool Exchange pp 1-7. Available at http://www.awex.com.au/scripts/nc.dll?AWEX.20513482:STANDARD:1447337030:pc=PC_ (2008).
72. Ryder, M.L. (1987) Evolution of the fleece. Scientific American, 255: 112-119.
73. Stobart, R., Johnson, L., Cameron, B. and Nel, H. (1990) Colored fiber contamination in Wyoming wools. Sheep Research Journal, 6: 24-27.
74. Trollip, N.G., Heinrich, A. and van Rensberg, N.J.J. (1987) A comparison of the uptake of pre-metallised dye by mohair and kemp. Electron Microscopy Society of Southern Africa, Proceedings, 17: 159-160.
75. th World Conference on Animal Production, Cape Town, South Africa, November 2008.
76. th World Conference on Animal Production, Cape Town, South Africa, November 2008.
77. Van Zyle, A.M. (1995) A review of dark fibre contamination in wool. Summary of a report on project XA035 sponsored by the South African Wool Board. Division of Textile Technology, CSIR. pp 1-18.
78. Wetzold, W.W and von Bergen, W. (1970) Worsted topmaking. In: 'Wool Handbook'. Edit. W. Von Bergen (Interscience; New York) pp 255-333.