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pp.178-188
Single nucleotide polymorphisms (SNPs), that usually occurs with a modification in single nucleotide among the population of 1000 nucleotides. Such changes in nucleotides have been investigated and been associated by meat scientist for economically important traits and to increase economical profits in stock breeding. Pluralities in the study have correlated SNPs of potential candidate gene with economically important traits in domestic animals have been put forward. In chickens, INS, IGF1, IGF1R, IGFBP, CAPN1, CAPN3, GHSR, FATP1, FGFBP1, FGFBP2, apoVlDL-Ⅱ, PB1, miR-1614-3p, DAAM1, Wnt3A, LRP5, CHP, RHOA, MAPK9, SFRP1, ATGL, PGC-1α, NPY, GnRHR, PRL, TGFβ2, CASR. UCP, ADSL, STAT5b, LRP2 and CTSD genes have been found to have significant effects on body weight, breast muscle weight, carcass weight and egg number. For the similar reasons, SNPs of these genes have been considered useful DNA markers for the improvement economic value of poultry. Although further studies on different breeds of chickens would be required to segregate such dataset for different breeds of chickens.
