RESULTS	Molecular analyses revealed that breast muscle from chickens consuming the HyD-42 expressed significantly higher concentrations of vitamin D receptor ( VDR ) , phospho mechanistic target of rapamycin ( Ser2481 ) , phospho ribosomal P70 S6 kinase ( RPS6K ) ( Thr421/Ser424 ) , and antigen Ki-67 ( Ki67 ) compared with the other groups .\