Record Details

Genomic selection in sheep: Prospects for Indian sheep industry

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Genomic selection in sheep: Prospects for Indian sheep industry
 
Creator L. Leslie Leo Prince
G R Gowane
 
Subject Sheep Breeding, Genomic Selection, Single Step, Breeding Value, SNP
 
Description Small ruminants are the key component among the livestock sector that plays a significant role in sustainable livelihood of landless and small holder farmers in India. Rural human population constitutes 72.22 % out of which majority are dependent directly or indirectly on the agriculture and livestock related occupations. The total sheep in the country is 65.06 million that accounts for nearly 12.7% of total livestock population in
India.Traditional breeding programs aimed at improving the productivity of sheep through selection. Nevertheless accurate, this approach always relied upon the intensity of selection and length of the generation interval (GI). Larger the GI, more time it took to improve any given trait of interest. Since advent of the genomic selection, genomic estimated breeding values (GEBV) of animals are being obtained at juvenile stage. This has resulted in significant reduction in the generation interval and faster rate of genetic improvement with more accuracy. Single Step approach has further allowed use of even non-genotyped individuals in reference for better accuracy and less bias of prediction. Genomic selection has literally replaced the pedigree selection at many places across the world barring India. In our country given the large population, sheep breeds can be easily brought under the genetic improvement programs and hence the benefits to the sheep industry can be increased many-fold. In India, given large sheep genetic resources which are yet to be included in the improvement programs due to lack of pedigree relationship can be very well brought under this umbrella. Genomic selection can be effectively used to enhance the pace and accuracy of selection programs especially for the traits which are difficult to measure, expressed in one sex and late in life or post death and have low heritability.
 
Date 2021-07-29T08:39:51Z
2021-07-29T08:39:51Z
2017-09-01
 
Type Review Paper
 
Identifier L. L. L. Prince and G. R. Gowane (2017) Genomic selection in sheep: Prospects for Indian sheep industry, Indian Journal of Veterinary and Animal Sciences Research, 46(4):1029-1046
2347-2774
http://krishi.icar.gov.in/jspui/handle/123456789/51016
 
Language English
 
Relation Not Available;
 
Publisher Indian Journal of Veterinary and Animal Sciences Research (IJVASR)