MARKER ASSISTED SELECTION IN LIVESTOCK BREEDING: A REVIEW

Résumé

Conventional breeding strategies in livestock production is time consuming and the effect of conventional breeding scheme in livestock is limited in most cases. This strategies do not take into account all sources of genetic variability efficiently. Also, selection for sex-limited, lowly heritable or late-expressed traits are not only difficult but also very expensive using conventional breeding strategies. However, Marker Assisted Selection (MAS) technique combined all genetic information at markers and Quantitative trait loci (QTL) with the phenotypic records to enhance genetic evaluation and selection. It is an important tool in selection of economic traits in farm animals and hence, it is
expected to increase the rate of genetic gain in livestock when relating to traditional breeding programmes.