Effect of sex and body region on the follicular profile of corriedale sheep
Keywords:
Corriedale, Follicles and S/P RatioAbstract
The quality and quantity of wool production is a function of number and type of wool follicles. Hence a study was conducted to evaluate the follicular characteristics of corriedale sheep, a dual purpose breed established well in the temperate climatic conditions of Kashmir valley. Skin samples of corriedale sheep were collected ethically from different body regions viz; neck, shoulder, thorax, flank and back of both sexes and preserved in 10% neutral buffered formalin. The samples were processed for histomorphlogy. Primary and secondary follicle density and their diameter was recorded. Secondary to primary follicle ratio was also calculated. The study revealed the difference in the follicular density and S/P follicle ratio between the sexes as well as between the body regions. In general, the follicle density and S/P ratio was found higher in the flank and thorax region respectively. Evaluation of the follicular profile at flank and thorax during early period will serve as a reliable predictor for the wool yield and quality.
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Abbasi M., Gharzi A., Karimi H. and Khosravinia H. (2008). Effects of sex on histological characteristics of various areas of skin in an Iranian native breed of sheep. Journal of Animal Veterinary Advances. 7 (11): 1503-1505.
Afzal, Yasir., Mattoo, FA., Ganaie, A.M., Ahmad, H.A. and Wani, S.A. (2009). Blood profile and wool attributes of sheep fed on different roughage sources and tree leaves based complete feed blocks. Veterinary Practitioner 10 (2): 136-140.
Andrews, R.N., Beattie, A.E., Dodds, K.G., Wuliji, T. and Montgomery, G.W. (1998). Wool follicle traits of 1/2 Merino, 1/2 Romney F and backcross 3/4 Merino1/4 Romney gene mapping flocks. (in ) Proceedings of the New Zealand Society of Animal Production, New Zealand: 262-265.
Ansari-Renani, H. R., M. Salehi, Z., Ebadi, S., Moradi, H., Baghershah, R., Ansari-Renani, M.Y. and Ameli, S. H. (2011a). Determination of hair follicle characteristics, density and activity of Iranian cashmere goat breeds. Small Ruminant Research. 95: 128–132.
Britt, AG., Cotton, CL., Kellett BH., Pitman IH. and Trask, JA. (1985). Structure of the epidermis of Australian Merino sheep over a 12 month period. Australian Journal of Biological Sciences. 38: 165-174.
Clark, W.H. (1960). A histological technique for the study of the skin follicle in sheep. C.S.I.R., Technical Paper No. 3. Crook, BJ. and Purvis IW. (1995). Wool follicle traits in the NSW Peppin Merino stud industry: Preliminary estimates from a sample survey. Proceedings of the Australian Association for Animal Breeding and Genetics. 12: 158-162
Dellman, HD. (1998). Text book of Veterinary Histology. 5th Edn, (Lea and Febiger), Philadelphia, USA. pp: 285-295.
Genkovski, D. and Gerchev, G. (2007). Study of the skin histological structure in ewes from Staroplaninska and Thoroughbred Tsigai. Biotechnology in Animal Husbandry. 23: 191-197.
Gifford, D., Ponzoin, R., Zncell,P., Hynd, P., Walkely, J. and Grimson, R. 1995. Genetic studies on wool quality and skin characters of Merino. Wool Technology Sheep Breeding. 43 (1): 24-29.
Hatcher, S., Hynd, P.I., Thornberry, K.J. and Gabb, S. (2010). Can we breed Merino sheep with softer, whiter, more photostable wool? Animal Production. Sciences., 50: 1089-1097.
Kazmi, Asiya (2014). Wool Follicular Characteristics of Corriedale and Bakarwal Sheep in Relation to Yield and Quality. MVSc Thesis submitted to Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir.
Kocamas, H. and Aslan, S. (2004). Histological and histometrical study on the structure of Tuj breed sheep skin. Kafkas University of Veterinary Faculty Derg. 10: 91-98.
Kurtdede, N. and Asti, R.N. (1999). The investigation on the skin structure of German Black Head, Hampshire Down, Lincolon Longwool, White Karaman, Awassi and Konya Merino. Veterinary Journal of Ankara University. 46: 219-230.
Luna, L.G. (1968). Manual of Histological Staining Methods of the Armed Forces Institute of Pathology, (3rd edn.), Mc Graw-Hill Book Company, New York. pp: 38-40, 76-77, 82-83, 87-88, 94-95.
Mir, Shabir., Sathyamoorthy, OR., Ramesh, G. and Balachandran, C. (2011). Micrometrical studies on the skin of Madras red sheep (Ovis Aries) in different age groups. Tamil Nadu Journal of Veterinary and Animal Sciences. 7: 23-28.
Mobini, B. (2012). An Assessment of Fibers in Various Areas of Skin in Male and Female Bakhtiari Breed Lambs. Journal of Veterinary Advances. 2: 273-278.
Mobini, B. (2013). Studies on the density of various dermal structures in adult rams and ewes. Bulgarian Journal of Veterinary Medicine. 16 (1): 1-6.
Oznurlu, Y., Celik, I., Sur, E., Telatar, T. and Ozparlak, H. (2009). Comparative skin histology of the white New Zealand and Angora Rabbits: Histometrical and Immuno-histochemical Evaluation. Journal of Animal and Veterinary Advances. 8 (9): 1694-1701.
Oznurlu, Y., Celik I., Sur E. and Ozaydin T. (2011). Histological examination of the skin and AgNOR parameters of the matrix pili cells in the chinchilla. Eurasian Journal of Veterinary Sciences. 27 (1): 39-43.
Poppi, D.P. and McLennan, S.R. (2010). Nutritional research to meet future challenges. Animal Production Sciences. 50: 329-338.
Raichev, S. and Khristova, G. (1990). Microscopical morphology of the skin of some indigenous types of sheep in Bulgaria. Zhivotnovdni Nauki. 27 (6): 67-74.
Singh, R.A. (1997). Growth and structure of wool (in) Technology of wool production and management. Kalyani publishers. New Delhi pp: 27-39.
Singh, P.K., Bhat, A.S., Sarkar, T.K., Gupta, Subodh. and Wani, S.A. (2004). Influence of replacement of groundnut cake with mustard cake on the wool quality of corriedale lambs. Indian Journal of Animal Nutrition. 21(1): 52-54.
Singh, P.K., Bhat, A.S., Sarkar, T.K., Islam, R., Khan, H.M. and Wani, S.A. (2005). Performance of grazing lambs at different altitudes. Indian Journal of Animal Nutrition. 22 (2): 122-125.
Singh, PK., Banik, S., Ganai, TAS. and Sarkar, TK. (2008). Comparative performance of different breeds of sheep on wool production and quality traits in Kashmir valley. Indian Journal of Animal Research. 42 (1): 63-65.
Snedecor, GW. and Cocharan, WG. (1994). Statistical method (18 th edition). Lowa Stat University Press, Ames, Lowa, USA.
Swan, A.A., Purvis, I.W. and Piper, L.R. (2008). Genetic parameters for yearling wool production wool quality and body weight traits in fine wool Merino sheep. Australian Journal Experimental Agriculture. 48: 1168-1176.
Swan, P. (2010). The future of wool as an apparel fibre. (In: D.J. Cottle Edn). International Sheep and Wool Handbook. Nottingham University Press, Nottingham, UK, pp. 647-660.
Tabbaa, M.J., Al-Azzawi, W.A. and AlBarakeh, F.S. (1998). Effect of age and sampling location on fleece and fiber characteristics of Awassi sheep. Dirasat. 25: 389-400.
Warn, L.K., Geenty, K.B. and McEachern, S. (2006). Wool meets meat: Tools for a modern sheep enterprise. (In: Cronjé, P., Maxwell, D.K. Edn.). Australian Sheep Industry Cooperative Research Centre Conference, Orange, Australia, pp. 60-69.
Yeruham, I., Nyska, A. and Orgad, U. (1997). Physiological sebaceous gland hyperplasia in sheep. Israel Journal of Veterinary Medicine. 52: 17-18.
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