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The effect of selection for high 6-week live body weight (LBW) on the allelic frequencies of certain microsatellite loci in Cairo B-2 and RBC chicken lines were determined. The analysis covered 6 microsatellite markers within the two lines. Alleles were identified as genotype specific markers for Cairo B-2 and RBC lines. Selection for LBW appears to have affected the allelic frequency of tested microsatellite loci. The allelic number of the microsatellite markers MCW0010, MCW0018 and LEI0079, that are associated with live body, breast meat and carcass weight were higher in Cairo B-2 compared with the RBC line. The average heterozygosity in Cairo B-2 line was 0.063 and 0.109 for males and females respectively, while the RBC line shows higher values that reaches 0.375 for both males and females. Similar tendency was observed for the polymorphism information content (PIC) in which Cairo B-2 line show lower values (0.051 and 0.097) compared to the RBC line that showed higher values (0.269 and 0.297) for males and females respectively. The association between the important economic traits and microsatellite loci could facilitate the selection process by applying Marker Assisted Selection (MAS) in future breeding programs.
[ G. S. Ramadan, R. E. Moghaieb, A. A. EL-Ghamry, E. M. EL-Komy, F. S. Nassar, Mona M. Ghaly and F. K. R. Stino (2014); Microsatellite Markers Assisted Selection for High Body Weight in Local Broiler Breeders Int. J. of Adv. Res. 2 (8). 0] (ISSN 2320-5407). www.journalijar.com
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