The effect of ration sequence on the staple strength of genetically high and low wool producing Merino wethers

Australian Journal of Agricultural Research

Volumn 54, Issue 9, 2003, Pages 923-932

  Friend, M A ^a,b   Robards, G E ^a  

^a UNIVERSITY OF NEW SOUTH WALES   (Australia)

^b CHARLES STURT UNIVERSITY   (Australia)

Author keywords

Between fibre variation; Genotype; Protein; Sheep; Staple strength

Indexed keywords

ANIMALIA; OVIS ARIES;

FIBER DIAMETER; LIVESTOCK PRODUCTION; MERINO WOOL; PROTEIN; STAPLE FIBER; STRENGTH;

EID: 0142027910     PISSN: 00049409     EISSN: None     Source Type: Journal    
DOI: 10.1071/AR02196     Document Type: Article

References (38)

1. Adams NR, Briegel JR (1998) Liveweight and wool growth responses to a Mediterranean environment in three strains of Merino sheep. Australian Journal of Agricultural Research 49, 1187-1193.
2. Adams NR, Briegal JR, Ritchie AJM (1997) Wool and liveweight responses to nutrition by Merino sheep genetically selected for high or low staple strength. Australian Journal of Agricultural Research 48, 1129-1137.
3. AOAC (Association of Official Agricultural Chemists) (1980) 'Official Methods of Analysis of the Association of Official Agricultural Chemists.' 13th edn (AOAC: Washington, DC)
4. Black JL, Robards GE, Thomas R (1973) Effects of protein and energy intakes on the wool growth of merino wethers. Australian Journal of Agricultural Research 24, 399-412.
5. Brown DJ, Crook BJ, Purvis IW (2002) Differences in fibre diameter profile characteristics in wool staples from Merino sheep and their relationship with staple strength between years, environments and bloodlines. Australian Journal of Agricultural Research 53, 481-491.
6. Butcher G, Eady S, Smith F (1984) Preliminary observations on some factors which influence the tensile strength of wool. Animal Production in Australia 15, 125-128.
7. Collins JD, Chaikin M (1965) The stress-strain behaviour of dimensionally and structurally non-uniform wool fibres in water. Textile Research Journal 35, 777-787.
8. Faichney GJ, Welch RJ, Brown GH (1998) Feed intake, digestion and renal function in Merino sheep selected for higher clean fleece weight. Australian Journal of Agricultural Research 49, 107-112.
9. Ferguson KA (1959) Influence of dietary protein percentage on growth of wool. Nature 184, 907.
10. Friend MA (1998) Nutritional effects on the staple strength of wool produced by Merino sheep with differing potential for wool growth. PhD thesis, University of New South Wales.
11. Friend MA, Robards GE (1995) Monitoring wool fibre diameter and length changes using gel emulsion autoradiography. Proceedings of the New Zealand Society of Animal Production 55, 28-30.
12. Friend MA, Robards GE, Kennedy JP (1996) Relationships between staple strength and fibre diameter changes in Merino sheep selectively bred for either high or low clean fleece weight. Animal Production in Australia 21, 111-114.
13. Hansford KA, Kennedy JP (1990) The relationship between variation in fibre diameter along staples and staple strength. Proceedings of the 8th International Wool Textile Research Conference 1, 590-598.
14. Hogan JP, Weston RH (1967) The digestion of two diets of differing protein content but with similar capacities to sustain wool growth. Australian Journal of Agricultural Research 18, 973-981.
15. de Jong S, Kavanagh WJ, Andrews MW (1985) Factors contributing to the staple strength of wool. Proceedings of the 7th International Wool Textile Research Conference 2, 147-156.
16. MAFF (Ministry of Agriculture, Fisheries and Food) (1985) 'Energy allowances and feeding systems for ruminants.' Reference Book 433. (Her Majesty's Stationery Office: London)
17. Masters DG, Mata G, Liu SM, Peterson AD (1998) Influence of liveweight, liveweight change, and diet on wool growth, staple strength, and fibre diameter in young sheep. Australian Journal of Agricultural Research 49, 269-277.
18. Oddy VH, Robards GE, Low SG (1983) Prediction of in vivo dry matter digestibility from the fibre and nitrogen content of a feed. In 'Feed Information and Animal Production'. (Eds GE Robards, RG Packham) pp. 395-398. (CAB: Farnham Royal, UK)
19. Pattie WA, Barlow R (1974) Selection for clean fleece weight in Merino sheep. 1. Direct response to selection. Australian Journal of Agricultural Research 25, 643-655.
20. Peter DW, Forman PJ, Baker SK (1994) The influence of rate of change in feed intake on staple strength. Animal Production in Australia 20, 273-276.
21. Peterson AD, Gherardi SG, Doyle PT (1998) Components of staple strength in fine and broad wool Merino hoggets run together in a Mediterranean environment. Australian Journal of Agricultural Research 49, 1181-1186.
22. Reis PJ (1979) Effects of amino acids on the growth and properties of wool. In 'Physiological and Environmental Limitations to Wool Growth'. (Eds JL Black, PJ Reis) pp. 223-242. (University of New England Publishing Unit: Armidale, NSW)
23. Reis PJ (1989) The influence of absorbed nutrients on wool growth. In 'The Biology of Wool and Hair'. (Eds GE Rogers, PJ Reis, KA Ward, RC Marshall) pp. 185-203. (Chapman and Hall: London)
24. Ritchie AJM, Lewer RP (1994) Genetic prevention of low staple strength. Animal Production in Australia 20, 51-52.
25. Ritchie AJM, Ralph IG (1990) Relationship between total fibre diameter variation and staple strength. Animal Production in Australia 18, 543.
26. Robertson SM, Robards GE, Wolfe EC (2000) The timing of nutritional restriction during reproduction influences staple strength. Australian Journal of Agricultural Research 51, 125-132.
27. SAS Institute (1985) 'SAS Users Guide.' (SAS Institute Inc.: Cary, NC)
28. SCA (Standing Committee on Agriculture) (1990) 'Feeding standards for Australian livestock: ruminants.' (CSIRO: Melbourne)
29. Schlink AC, Briegal JR, Greeff J, Thompson AC, Adams NR (1998) Estimation of wool fibre length variation in staple segments using image analysis. Animal Production in Australia 22, 421.
30. Schlink AC, Mata G, Lea JM, Ritchie AJM (1999) Seasonal variation in fibre diameter and length in wool of grazing Merino sheep with low or high staple strength. Australian Journal of Experimental Agriculture 39, 507-517.
31. Short BF, Fraser AS, Carter HB (1958) Effect of level of feeding on the variability of fibre diameter in four breeds of sheep. Australian Journal of Agricultural Research 9, 229-236.
32. van Soest PJ (1963) Use of detergents in the analysis of fibrous feeds. 2. A rapid method for the determination of fibre and lignin. Journal of the Association of Official Agricultural Chemists 46, 829-835.
33. Story LF, Ross DA (1960) Effect of shearing time on wool. VI. The rate of growth of wool and its relation to time of shearing. New Zealand Journal of Agricultural Research 3, 113-124.
34. Thompson AN, Hynd PI (1998) Wool growth and fibre diameter changes in young Merino sheep genetically different in staple strength and fed different levels of nutrition. Australian Journal of Agricultural Research 49, 889-898.
35. Thomson BC, Dellow DW Barry TN (1989) The effect of selection for fleece weight upon urea metabolism and digestive function in Romney sheep. Australian Journal of Agricultural Research 40, 1065-1074.
36. Williams AJ (1987) Physiological consequences of selection for increased fleece weight. In 'Merino Improvement Programs in Australia'. (Ed. BJ McGuirk) pp. 481-494. (Australian Wool Corporation: Melbourne)
37. Woods JL, Orwin DFG (1988) Seasonal variations in the dimensions of individual Romney wool fibres determined by a rapid autoradiographic technique. New Zealand Journal of Agricultural Research 31, 311-323.
38. Zhang Y, Wang X (2000) The effect of along-fibre variation on fibre tensile behaviour. Wool Technology and Sheep Breeding 48, 303-312.