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Original Articles

Medullation and average fibre diameter vary independently in the wool of Romney sheep

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Pages 101-110 | Received 26 Nov 1996, Accepted 13 Nov 1997, Published online: 17 Mar 2010

References

  • Auber , L. 1950 . The anatomy of follicles producing wool‐fibres, with special reference to keratinization . Transactions of the Royal Society of Edinburgh , 62 : 191 – 254 .
  • Auber , L. and Ryder , M. L. Anomalies in structure and development of wool fibres . Proceedings of the 1st International Wool Textile Research Conference . Australia. pp. 36 – 62 . F.
  • Baxter , B. P. , Brimms , M. A. and Taylor , T. B. Description and performance of the Optical Fibre Diameter Analyser . IWTO Technical Committee Meeting . Nice. report no. 8
  • Baxter , B. P. , Brimms , M. A. and Taylor , T. B. Further studies on the performance of the OFDA . IWTO Technical Committee Meeting . Punta del Este. report no. 8
  • Bray , A. R. , Scobie , D. R. and Woods , J. L. Genetic improvement in the wool strength of Romney sheep . Proceedings of the 9th International Wool Textile Research Conference . Biella, Italy. Vol. 2 , pp. 173 – 181 .
  • Bray , A. R. , Merrick , N. C. , Smith , M. C. and Scobie , D. R. 1995b . Wool growth responses in Drysdale and high and low staple tenacity Romney sheep to nutrient supplementation in autumn . Proceedings of the New Zealand Society of A nimal Production , 55 : 54 – 57 .
  • Bray , A. R. , Smith , M. C. , Woods , J. L. and Baird , D. B. 1992 . Responses to selection for wool staple strength in Romney sheep . Proceedings of the New Zealand Society of Animal Production , 52 : 285 – 287 .
  • Doney , J. M. and Smith , W. F. 1962 . Multiple medullae in wool fibres . Nature , 195 : 723
  • Goot , H. 1945 . Hairiness in wool. Part II. Yearly changes in hairiness in New Zealand Romney Marsh sheep . New Zealand journal of science and technology , 27 : 173 – 187 .
  • Greef , J. C. , Lewer , R. P. , Ponzoni , R. W. and Purvis , I. 1995 . Staple strength: Progress towards elucidating its place in Merino breeding . Proceedings of the Australian Association of Animal Breeding and Genetics , 11 : 173 – 187 .
  • Hatcher , S. F. 1995 . “ The potential of Awassi sheep and their Awassi x Merino progeny to cause fibre contamination ” . Nedlands, Western Australia, , Australia : The University of Western Australia . Unpublished PhD thesis
  • Henderson , A. E. 1965 . “ Relationship of wool follicle and wool fibre dimensions ” . In The biology of skin and hair growth , Edited by: Lyne , A. G. and Short , B. F. 447 – 460 . Sydney : Angus and Robertson .
  • Ince , J. and Ryder , M. L. 1984 . The evaluation of carpets made from experimental wools . Journal of the Textile Institute , 75 : 47 – 59 .
  • IWTO . 1993 . “ Specification IWTO‐28–93 ” . In Determination by the airflow method of the mean fibre diameter of core samples of raw wool , Ilkley : International Wool Secretariat .
  • IWTO . 1995 . “ Specification IWTCM‐47–95 ” . In Measurement of the mean and distribution of fibre diameter of wool using an optical fibre diameter analyser (OFDA) , Ilkley : International Wool Secretariat .
  • IWTO . 1997 . “ Specification IWTO‐57–97 ” . In Determination of objectionable medullated fibre content of wool and mohair samples by opacity measurements using an OFDA , Ilkley : International Wool Secretariat .
  • Jones , G. 1962 . Multiple medullae in wool fibres . Nature , 193 : 1001
  • Krishnarao , M. V. , Schinckel , P. G. and Clarke , W. H. 1960 . The wool follicle population of some Indian breeds of sheep . Australian journal of agricultural research , 11 : 97 – 104 .
  • Lang , W. R. 1947 . The comparative thickness of medullated and non‐medullated fibres in Corriedale wool . Journal of the Australian Institute of Agricultural Science , 13 : 69 – 70 .
  • Lappage , J. and Bedford , J. 1983 . The WRONZ Medulla‐meter , Wool Research Organisation of New Zealand report no. R107. Christchurch : Wool Research Organisation of New Zealand .
  • Lewer , R. and Li , Y. 1994 . Some aspects of selection for staple strength . Wool technology and sheep breeding , 42 : 103 – 111 .
  • Merrick , N. C. and Scobie , D. R. 1997 . Volume measurement of wool samples . Proceedings of the New Zealand Society of Animal Production , 57 : 57 – 60 .
  • Nagorcka , B. N. and Mooney , J. R. 1982 . The role of a reaction‐diffusion system in the formation of hair fibres . Journal of theoretical biology , 98 : 575 – 607 .
  • Nagorcka , B. N. and Mooney , J. R. 1989 . “ The reaction‐diffusion system as a spatial organizer during initiation and development of hair follicles and formation of the fibre ” . In The biology of wool and hair , Edited by: Rogers , G. E. , Reis , P. J. , Ward , K. A. and Marshall , R. C. 365 – 379 . London : Chapman and Hall .
  • Orwin , D. F. G. 1979a . “ Cytological studies on keratin fibres ” . In Fibrous proteins: scientific, industrial and medical aspects, 1 , Edited by: Parry , D. A. D. and Creamer , L. K. 271 – 297 . Sydney : Academic Press .
  • Orwin , D. F. G. 1979b . The cytology and cytochemistry of the wool follicle . International review of cytology , 60 : 331 – 373 .
  • Perkin , M. E. A. and Appleyard , H. M. 1964 . Abnormalities in wool and some other animal fibres . Journal of the Textile Institute , 55 : T396 – 400 .
  • Ross , D. A. Fibre diameter, medulla diameter and fibre tenacity . Proceedings of the 8th International Wool Textile Research Conference Christchurch . Vol. 1 , pp. 569 – 579 .
  • Rudall , K. M. 1933 . Effect of shearing on hairiness in the fleece of the Romney lamb . New Zealand journal of agriculture , 47 : 20 – 28 .
  • Rudall , K. M. 1934 . Pulling out wool fibres and its effect on hairiness . New Zealand journal of agriculture , 48 : 162 – 170 .
  • Rudall , K. M. 1935 . Growth changes in wool fibres; experiments on removing the heat conserving fleece. I . Journal of the Textile Institute , 26 : T358 – 370 .
  • Rudall , K. M. The size and shape of the papilla in wool follicles . Proceedings of the 1st International Wool Textile Research Conference . Sydney, Australia. pp. 9 – 25 . F
  • Ryder , M. L. 1985 . Cross‐breeding studies with selected fleece lines of Scottish Blackface sheep . Journal of the Textile Institute , 76 : 362 – 376 .
  • Scobie , D. R. and Woods , J. L. 1992 . A review implicating a two compartment model for the processes of cell division and protein synthesis in the wool follicle . Proceedings of the New Zealand Society of Animal Production , 52 : 265 – 271 .
  • Scobie , D. R. , Merrick , N. C. and Saville , D. J. 1994a . Comparison of methods for measuring fibre diameter of Romney wool . Proceedings of the New Zealand Society of Animal Production , 54 : 155 – 157 .
  • Scobie , D. R. , Woods , J. L. and Baird , D. B. 1993 . Seasonal and between sheep differences in medullation of wool fibres . Proceedings of the New Zealand Society of Animal Production , 53 : 319 – 322 .
  • Scobie , D. R. , Woods , J. L. and Baird , D. B. 1995 . Staple tenacity versus staple strength . Proceedings of the New Zealand Society of Animal Production , 55 : 39 – 41 .
  • Scobie , D. R. , Bray , A. R. , Maher , A. P. , Smith , M. C. and Merrick , N. C. 1994b . Staple strength in crossbred wool: the sensible solution . Proceedings of the Australian Society of Animal Production , 20 : 301 – 304 .
  • Scobie , D. R. , Walls , R. J. , Markham , L. J. , Woods , J. L. and Bray , A. R. 1996 . Wool fibre tenacity in Romney sheep genetically different in staple tenacity . Australian journal of agricultural research , 47 : 1203 – 1212 .
  • Skarman , S. and Nommera , E. 1954 . Seasonal variations in fineness and medullation in Cheviot wool . Annals of the Royal Agricultural College of Sweden , 21 : 367 – 384 .
  • Tibbits , J. P. 1959 . Post‐natal growth changes in the fibre cortex and medulla of the New Zealand Romney and N‐type sheep . Journal of agricultural science , 53 : 358 – 368 .
  • Townend , S. and McMahon , P. R. 1944 . Significance of hairiness to the wool textile industry . The New Zealand journal of science and technology , 26 : 1 – 20 .
  • Wildman , A. B. 1954 . The microscopy of animal textile fibres , Leeds : Wool Industries Research Association .

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