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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Online ISSN : 2319-7706
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Index Copernicus ICV 2017: 100.00
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Int.J.Curr.Microbiol.App.Sci.2019.8(4): 2062-2065
DOI: https://doi.org/10.20546/ijcmas.2019.804.242


Estimation of Inbreeding Coefficient in Corriedale Sheep
Nusrat Nabi1, N.A. Ganai1, S. Shanaz1, Safeer Aalam1, Saba Bukhari1, Mir Shabir1, Ruksana Majid1, Ambreen Hamdani1, Najimaana Wani2 and Heena Jalal3
1Division of Animal Genetics and Breeding, SKUAST-K, India
2Division of veterinary public health and epidemology, SKUAST-K, India
3Division of Livestock Production and Technology, SKUAST-K, India
*Corresponding author
Abstract:

The present study was undertaken to the estimate inbreeding coefficient in Corriedale sheep under different agro-climatic conditions of Jammu and Kashmir. The pedigree file of 6,874 records of Corriedale sheep, maintained at Mountain Research Centre for Sheep & Goat (MRCSG), F.V.Sc & A.H, SKUAST-K Shuhama, for a period of 49 years (1969-2017) was used to calculate inbreeding coefficients. The individual inbreeding coefficients were measured by Wright’s formula and was computed from the pedigree containing 6,874 animals using CFC software package and expressed as percentage. Average inbreeding coefficient (F) of the lambs generally increased over the periods. The mean inbreeding coefficient (F), proportion of population inbred (per cent), for Corriedale sheep were 18.3 and 43.3 respectively. During initial periods, inbreeding coefficient was 9.67 and it increased upto 27.7 during the last period. During the initial period (P1, (1969-1975) about 12.2% were inbred and gradually increased upto 80.19% during the last period (P7, (2011-2017). The coefficient of inbreeding ranged from 0 to 37.5 in inbred lambs. It was concluded that by avoiding the mating between related individuals and by the introduction of breeding rams, unnecessary and undesirable increase of inbreeding in the flock can be minimized.


Keywords: Inbreeding coefficient, Corriedale sheep
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How to cite this article:

Nusrat Nabi, N.A. Ganai, S. Shanaz, Safeer Aalam, Saba Bukhari, Mir Shabir, Ruksana Majid, Ambreen Hamdani, Najimaana Wani and Heena Jalal. 2019. Techniques for Estimation of Inbreeding Coefficient in Corriedale Sheep.Int.J.Curr.Microbiol.App.Sci. 8(4): 2062-2065. doi: https://doi.org/10.20546/ijcmas.2019.804.242