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Breeding Prolific Garole with Malpura Sheep for In creased Reproductive Efficiency in Semi Arid Tropics of India
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 Title & Authors
Breeding Prolific Garole with Malpura Sheep for In creased Reproductive Efficiency in Semi Arid Tropics of India
Sharma, R.C.; Arora, A.L.; Mishra, A.K.; Kumar, S.; Singh, V.K.;
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 Abstract
Garole, a prolific small sized sheep breed of West Bengal, was introduced in the Mutton project of the Institute in 1997 to explore the possibility of incorporating fecundity gene(s) into monotocus Malpura sheep of Rajasthan. Results of reproduction and production traits in respect of GaroleMalpura (GM) half-breds have been obtained. Of 35 lambing obtained so far from the ewes of GaroleMalpura, 45.71% were twin lambing, whereas, Malpura sheep produced mostly single lamb except 2.55% twin lambing on an average. Other reproduction traits in GM ewes such as lambing rate, litter size at birth and weaning were considerably improved over Malpura ewes. Results revealed that the fecundity genes responsible for increasing ovulation rate and litter size have been incorporated in to the GM genotype and it might prove a valuable germ plasm towards evolving a new prolific strain of sheep. Interestingly, survivability of GM half-breds was almost at par with the local Malpura sheep in harsh climatic conditions of semi-arid tropics. The body weights at different ages of GM half-breds were on little lower side compared to contemporary Malpura lambs. Average kilogram of lambs weaned/ewe lambed in Malpura and GM genetic group was 11.86 and 11.07 kg respectively. In view of minimizing the differences in body weights and kg of lambs weaned/ewe lambed between the two genetic groups, GM ewes has to be backcrossed with Malpura rams to raise the inheritance of latter up to 75% level. However, further research is needed to reach on certain conclusions regarding net returns from such crosses.
 Keywords
Reproduction;Garole Crosses;Sheep;Performance Traits;
 Language
English
 Cited by
 References
1.
Arora, A. L., R. C. Sharma, H. K. Narula and Ravindra Kumar. 1999. Comparative performance of Avikalin and Malpura sheep. Indian J. Small Rumin 5:4-8.

2.
Davis, G. H., S. M. Galloway, I. K. Ross, S. Gregan, J. Ward, B. V. Nimbkar, P. M. Ghalsasi., C. Nimbkar, G. D. Gray, Subandriyo, I. Inounu, B. Tiesnamurti, E. Martynuik, E. Eythorsdottir, P. Mulsant, F. Lecerg, J. P. Hanrahan, G. E. Bradford and T. Wilson. 2002. DNA test in prolific sheep from eight countries provide new evidence on origin of the Booroola (Fec B) mutation. Biology of Rep. 66:1869-1874.

3.
Ghalsasi, P. M. and B. V. Nimbkar. 1993. The 'Garole' Microsheep of Bengal, India. Anim. Genet. Reso. Inform. 12:73-79.

4.
Harvey, W. R. 1975. Least-squares analysis of data with unequal subclass numbers. USDA, ARS, H-4, Washington DC, p. 157.

5.
Nimbkar, C., P. M. Ghalsasi, R. R. Ghatge and G. D. Gray. 1998. Establishment of prolific Garole sheep from West Bengal in the semi-arid Deccan plateau of Maharastra. In: Proceedings of 6th World Cong. Genet. Appl. Lives. Prod., Armidale. pp. 257-260.

6.
Nimbkar, C., P. M. Ghalsasi, S. W. Walkden-Brown, L. P. Kahn and G. D. Gray. 2000. A comparison of the growth performance and worm resistance of lambs produced by diallel crossing of three Indian sheep breeds. Asian-Aust. J. Anim. Sci. 13:72-75.

7.
Nimbkar, C., P. M. Ghalsasi, A. Swan, S. W. Walkden-Brown and L. P. Kahn. 2003a. Evaluation of growth rates and worm resistance of Deccani and Bannur lambs and their crosses with Garole. Anim. Sci. 503-515.

8.
Nimbkar, C., P. M. Ghalsasi, J. F. Maddox, V. C. Pardeshi, M. N. Sainani, V. Gupta and S. W. Walkden-Brown. 2003b. Expression of the Fec B gene in Garole and crossbred ewes in Maharashtra, India. In: Proceeding of the Assoc. for Adv. Anim. Breed Genet. 15:111-114.

9.
Sharma, R. C., A. L. Arora, H. K. Narula and R. N. Singh. 1999a. Characteristics of Garole sheep in India. Anim. Genet. Reso. Inform. 26:57-64.

10.
Sharma, R. C., A. L. Arora, R. Kumar and H. K. Narula. 1999b. Impact of genetic and non-genetic factors on growth profile in Malpura and Avikalin lambs. Indian J. Anim. Sci. 69:820-822.

11.
Sharma, R. C., A. L. Arora and B. U. Khan. 2001. Garole: A Prolific sheep of India. Central Sheep and Wool Research Institute, Avikanagar-304501, Rajasthan, India. Research Bulletin, p. 17.

12.
Turner, H. N. 1982. Origins of the CSIRO Booroola. In: The Booroola Merino (Ed. L. R. Piper, B. M. Bindon and R. D. Nethery). CSIRO, Australia. pp. 1-7.