author(s)
Vandana Yadav, NP Singh, Shivangi Sharma, Neeti Lakhani, Aamrapali Bhimte, Anjali Khare and Saleem Yousuf

abstract
The world population is rising rapidly along with increasing demands and there is huge gap between the population demands and the livestock production. In this situation there is increased pressure on the livestock for more improved production. Conventional breeding methods have contributed significantly towards it but accuracy of selection is not up to the mark. Genomic selection is a new novel approach towards the genetic improvement of livestock, it is a form of marker assisted selection in which genetic markers covering the whole genome are used so that all quantitative trait loci are in linkage disequilibrium with atleast one marker. In genomic selection, selection decisions are based on genomic breeding values (GEBV). The GEBV are calculated as the sum of the effects of dense genetic markers, or haplotypes of these markers, across the entire genome, thereby potentially capturing all the quantitative trait loci (QTL) that contribute to variation in a trait. It is a better and advance way of selection as it can be done at an early age with great accuracy, improved genetic gain with reduced generation interval.