Asian-Australasian Journal of Animal Sciences

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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Determination of Wool Follicle Characteristics of Iranian Sheep Breeds

  • Ansari-Renani, H.R. (Animal Science Research Institute) ;
  • Moradi, S. (Dept., Agriculture College, University of Zanjan, Animal Science Research Institute) ;
  • Baghershah, H.R. (Dept. Agriculture and Natural Resources College, University of Tehran) ;
  • Ebadi, Z. (Animal Science Research Institute) ;
  • Salehi, M. (Animal Science Research Institute) ;
  • Momen, S.M. Seyed (Agricultue and Natural Resources Research Center) ;
  • Ansari-Renani, M.Y. (Statistical Analyzer)
  • Received : 2010.11.28
  • Accepted : 2011.03.25
  • Published : 2011.08.01
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Abstract

In this study wool follicle characteristics of Iranian sheep breeds were investigated. A total of 242 male and female sheep of different age from 5 breeds were studied. Samples of skin were taken from the right midside to determine follicle characteristics. Overall averages for males and females were $3.7{\pm}0.1$ and $3.5{\pm}0.1$ for S/P ratio; $3.2{\pm}0.1$ and $3.6{\pm}0.1$ for primary follicle density; $12.1{\pm}0.7$ and $13.8{\pm}0.4$ for secondary follicle density; $15.3{\pm}0.7$ and $17.4{\pm}0.4$ for total primary plus secondary follicle density; $2.3{\pm}0.2$ and $3.5{\pm}0.3$ for percentage of inactive secondary follicles. Significant differences were found in some follicle characteristics between sheep breeds. Results of this study showed that sheep breeds raised in different parts of Iran characterized by a low S/P ratio and follicle density could be classed as carpet wool breeds.

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References

  1. Ahmed, B. A. K. 1996. Some studies on the body cover in some farm animals. Ph. D. Thesis, Faculty of agriculture, Zagazig University, Zagazig, Egypt.
  2. Ansari-Renani, H. R. and P. I. Hynd. 2001. Cortisol-induced follicle shutdown is related to staple strength in Merino sheep. Livest. Prod. Sci. 85:173-180.
  3. Ansari-Renani, H. R., and P. I. Hynd. 2004. Epidermal growth factor, but not cortisol, suppresses fibre growth in cultured follicles. Livest. Prod. Sci. 69:279-289.
  4. Ansari-Renani, H. R. 2008. Seasonal hair follicle cycle of Camelus Dromedarious. Pakistan J. Biol. Sci. 11(3):410-415. https://doi.org/10.3923/pjbs.2008.410.415
  5. Ansari-Renani, H. R., P. I. Hynd and A. Aghajanzadeh. 2007. Fleece phenotype influences susceptibility to cortisol-induced follicle shutdown in Merino sheep. Asian-Aust. J. Anim. Sci. 20(11):1761-1769. https://doi.org/10.5713/ajas.2007.1761
  6. Ansari-Renani, H. R., M. Salehi, Z. Ebadi and S. Moradi. 2010 Identification of hair follicle characteristics and activity of one and two humped camels. Small Rumin. Res. 90:64-70. https://doi.org/10.1016/j.smallrumres.2010.01.004
  7. Ansari-Renani, H. R., M. Salehi, Z. Ebadi, S. Moradi, H. R. Baghershah, M. Y. Ansari-Renani and S. H. Ameli. 2011. Determination of hair follicle characteristics, density and activity of Iranian cashmere goat breeds. Small Rumin. Res. 95:128-132. https://doi.org/10.1016/j.smallrumres.2010.09.013
  8. Auber, L. 1952. The anatomy of follicles producing wool-fibres, with special reference to keratinization. Transcripts of the Royal Society of Edinbugh 62:191-254. https://doi.org/10.1017/S0080456800009285
  9. Clark, W. H. 1960. A histological technique for the study of the skin follicle in sheep. C. S. I. R., Technical Paper No. 3.
  10. Carter, H. B. and W. H. Clarke. 1957. The hair follicle group and skin follicle population of some non-Merino breeds of sheep. Aust. J. Agric. Res. 8:109-119. https://doi.org/10.1071/AR9570109
  11. Carter, H. B. and D. F. Dowling. 1954. The hair follicle and aporcine gland population of cattle skin. Aust. J. Agric. Res. 5:745-54. https://doi.org/10.1071/AR9540745
  12. Champion, S. C. and G. E. Robards. 2000. Follicle characteristics, seasonal chavges in fibre-sectional area and ellipticity in Australian specialty carpet wool sheep, Romneys and Merinos. Small Rumin. Res. 38:71-82. https://doi.org/10.1016/S0921-4488(00)00141-3
  13. Chapman, R. E. and K. E. Ward. 1979. Histological and biochemical features of the wool fibre and follicle. In: Physiological and Environmental Limitations to Wool Growth (Ed. J. L. Black and P. J. Reis). UNE Press, Armidale, Australia, pp. 193-208.
  14. El-Shafie, M. M. 1954. Skin histology of Egyption buffaloes and cattle. M. Sc. Thesis, Faculty of Agriculture. Cairo University. U.A.R.
  15. Food and Agriculture Organization of the United Nations. 2010. www.FAOSTAT.com
  16. Frank, E. N., M. H. V. Hick and M. Pesarini. 1998. A new approach for histological description of skin follicular complex in Argentina Llamas. En: Actas 20 Seminario Int. De Camelidos Sudamericanos domesticas. Seminario SUPREME.
  17. Hart, D. S., J. W. Bennett, J. L. D. Hutchison and M. Wodzicka- Tomaszewska. 1963. Reversed photoperiod seasons and wool growth. Nature 198:310-311. https://doi.org/10.1038/198310a0
  18. Hoffman, E. 2004. The world market and why the Vicuna may be the key to improving fibre market. Camelid Quarterly.
  19. Hynd, P. I., R. W. Ponzoni and C. L. Wayte. 1989. The effect of a WOOLPLAN-type selection programme on primary and secondary fibre size and shape. Wool Tech. Sheep Breed. 37:3.
  20. Ling, J. K. 1970. Pelage and moulting in wild mammals with special reference to aquatic forms. Q. Rev. Biol. 45:16-54. https://doi.org/10.1086/406361
  21. Lynch, P. and A. J. F. Russel. 1990. The hormonal manipulation of cashmere growth and shedding. Anim. Prod. 50:561.
  22. Lusky, T., A. Val bones, T. Rodriguez, C. Ayala, L. Weimin and M. Antonini. 2004. Skin follicular structure in Bolivian Llamas. In: South American Camelids Research (Ed. M. Gerken and C. Renieri). 1:207-216.
  23. Mitchell, R. J., K. Betteridge, M. P. Gurnsey, R. A. S. Welch and A. J. Nixon. 1991. Fibre growth cycles of cashmere-bearing reproducing does in Southern Hawkes Bay, New Zealand, over 30 month period. N.Z. J. Agric. Res. 34:287-294. https://doi.org/10.1080/00288233.1991.10417667
  24. Nixon, A. J. 1993. A method for determining the activity state of hair follicles. Biotech. Histochem. 68:316-325. https://doi.org/10.3109/10520299309105637
  25. Nixon, A. J., M. P. Gurnsey, K. Betteridge, R. J. Mitchell and R. A. S. Welch. 1991. Seasonal hair follicle activity and fibre growth in some New Zealand cashmere-bearing goats (Capra hircus). J. Zool. (Lond.) 224:589-598. https://doi.org/10.1111/j.1469-7998.1991.tb03787.x
  26. Orwin, D. F. G. and A. H. Whitaker. 1984. Feral sheep (Ovis aries L.) of Arapawa Island, Merlborough sound, and a comparison of their wool characteristics with those of four other feral flocks in New Zealand. N.Z. J. Zool. 11:201-224. https://doi.org/10.1080/03014223.1984.10423759
  27. Panaretto, B. A. 1979. Effectc of light and cyclic activity of wool follicles and possible relationships to changes in the pelage of other mammals. pp. 327-336. In: Physiological and environmental limitations to wool growth (Ed. J. L. Black and P. J. Reis). University of New England publishing unit, Armidale.
  28. Rougeot, J., R. G. Thebault and D. Allain. 1984. Role of the compound hair follicles in adaptive pelage changes. Acta. Zool. Fenn. No. 171:19-21.
  29. Ryder, M. L. 1967. Wool fibre shedding in some Merino sheep. Aust. J. Agric. Res. 18:683-687. https://doi.org/10.1071/AR9670683
  30. Slee, J. 1959. Fleece shedding, staple-length and fleece weight in experimental Wiltshire Horn-Scottish Blackface crosses. J. Agric. Sci. Cambridge. 53:209-233. https://doi.org/10.1017/S002185960002027X
  31. Slee, J. 1963. Birth coat shedding in Wiltshire Horn lamb. Anim. Prod. 5:301-316. https://doi.org/10.1017/S0003356100021838

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