الفهرس 
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Abstract
This study may be the first report on detection of polymorphisms of Insulin like growth factor-2 (IGF2), Insulin like growth factor-2 receptor (IGF2R), Myogenic differentiation (MyoD) and Myogenin (MyoG) genes and association between their SNPs and growth traits in Egyptian buffaloes. The SNPs which associated significantly with the growth traits are, C287A SNP in IGF2 exon 10 with homozygous genotype (AA), and A266C SNP in IGF2R exon 23 with homozygous genotype (AA) are significantly correlated with average daily gain (ADG) from birth to 9 months of age. These SNPs provides a set of marker useful for selection strategy of good meat producer animal as it could be contribute in improvement of meat production of buffalo. Moreover, Two novel SNPs, A1481C SNP in intron 2, C1876T SNP in 3/UTR, were detected in buffalo MyoD and two novel SNPs, T1198C in intron 1, C2858T in 3/UTR were detected in buffalo MyoG but these SNPs do not influence ADG in Egyptian buffaloes from birth to two years.