DOI: 10.5958/0976-0555.2014.00026.0    | Article Id: B-2501 | Page : 532-536
Citation :- CYTOGENETIC CHARACTERIZATION OF VIZIANAGARAM SHEEP+.Indian Journal of Animal Research.2014.(48): 532-536
I. Satish Kumar, B. Punya Kumari*, M. Gnana Prakash and J. Suresh punya67@yahoo.co.in
Address : Department of Animal Genetics and Breeding, Sri Venkateswara Veterinary University, Tirupati -517 502, India


Cytogenetic studies were conducted on a total of 60 Vizianagaram sheep maintained at the Livestock Research Station, Garividi and sheep managed by farmers in and around Srikakulam District of Andhra Pradesh. Short term lymphocyte culture technique was adopted. The diploid chromosome number was found to be 54 (2n = 54, XY). The first three pairs of the autosomes were submetacentric and the remaining 23 pairs of autosomes were acrocentric. The X chromosome was the longest acrocentric, while the Y- chromosome was the smallest biarmed. The mean relative length for the autosomes ranged from 1.54 ± 0.04 to 9.59 ± 0.12 per cent, While the mean relative length of X and Y chromosomes were 5.06 ± 0.02 and 1.81 ± 0.17, percent respectively. The mean arm ratios, centromeric indices and morphological indices varied from 1.31 ± 0.07 to 1.24 ± 0.07, 0.545 ± 0.04 to 0.565 ± 0.07 and 7.59 ± 0.01 to 5.36 ± 0.01, respectively.


Chromosomal profile Idiogram Morphometric measurements Vizianagaram sheep


  1. Amareswari, P., Ramesh Gupta, B., NarasimhaRao, G. and Narasa Reddy, G.V. (2005). Cytogenetic Characterization of Nellore sheep. Indian J. Anim. Sci., 75: 433-436.
  2. Benjamin, B.R. and Bhat, P.P. (1978). A note on the study of Sheep chromosome by cell culture technique. Indian J. Anim. Sci., 48: 234-237.
  3. Bhatia, S. and Shanker, V. (1989). Chromosomes of Nali Sheep. Indian J. Anim. Sci., 59: 297-299.
  4. Bhatia, S. and Shanker, V. (1991). C-banding of the chromosomes of Nali sheep. Indian J. Anim. Sci., 61: 1238-1241.
  5. Bhatia, S. and Shanker, V. (1994). Cytogenetic characertistics of Munjal sheep. Indian J. Anim. Sci., 64: 975-977.
  6. Bhatia, S. and Shanker, V. (1999). Cytogenetic studies in Patanwadi sheep. Cheiron, 28: 97 – 98.
  7. Borland, R. (1964). The chromosomes of domestic sheep. J. Heredity, 55: 61-64.
  8. Bunch, T.D. and Foote, W.C. (1976). Chromosomes, haemoglobins and transferrins of Iranian domestic sheep. J. Heredity, 67: 77-80.
  9. Devendran, P., Murali, N., Panneerselvam, S. and Kandasamy, N. (2009). Cytogenetic characterization of Coimbatore sheep. Indian J. Small Ruminants, 15: 55-61.
  10. FAO.(2009). Statistical database of www.fao.org last updated Feb., 2009.
  11. Gupta, N. and Gupta, S.C. (1995). The Karyotype of Malpura sheep. Indian J. Anim. Sci., 65: 101-103.
  12. Intizar, A., Safdar, A., Mirza, R.H. and Muhammad, A. (1999). Identification of individual chromosome pairs by Giemsa banding in Lohi sheep. J. Anim. and Plant Sci., 9: 85-88.
  13. Karunanithi, K., Edwin, M. J., Thiruvenkadan, A. K. and Purushothaman, M. R. (2005). Cytogenetic studies in Mecheri sheep of Tamil Nadu. Indian Vet. J., 82: 953-956.
  14. Kirikci, K. (2003). A study on the chromosomes of konya wild sheep (Ovis orientalis): A case Report. Turkish J. Vet. and Anim. Sci., 27: 281-283.
  15. Langhe, R.S., Narayankhedkar, S.C. and Chauhan, M.D. (1993). Cytogenetic Studies in domestic sheep. Cheiron, 22: 23-25.
  16. Moorehead , P.S., Nowell, P.C., Mellman, W.J., Battips, D.M. and Hungerford, D.A. (1960). Chromosome preparations of leucocytes cultured from human peripheral blood. Experimental Cell Research, 20: 613-616.
  17. Prakash, M.G., NarasimhaRao, G., Ramesh Gupta, B., Venkatramaiah, A. and Narasa Reddy, G.V. (2008). Chromosome profile of Deccani sheep. Indian J. Anim. Sci., 78: 397-400.
  18. Rcheulishvili, M.D. and Dzhokhadze, T.A. (1985). A karyological study of Imeritian sheep. Refeativnyi Zhurnul, 11: 401-402.
  19. Shaikh, S.H., Katkuri, S. A., Agrawal, H.D., Kachare, R.W., Kanadkhedkar, H.L and Umrikar, U.D. (2009). Cytogenetic evaluation of Deccani sheep. J. Bombay Vet. College, 17 (1): 14-18.
  20. Snedecor, G.W. and Cochran, W.G. (1989). Statistical Methods 8th edition. Iowa State University Press, USA.

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