the zinc-deficient diet significantly reduced the zinc concentration in serum ( 72 % ) , femur ( 65 % ) , pancrease ( 34 % ) , muscle ( 23 % ) , testis ( 11 % ) and brain ( 7 % ) , and elevated the calcium concentration in testis ( 19 % ) and brain ( 24 % ) , but did not affect calcium concentration in serum , pancreas and muscle .
C0006104
brain
C0086045
concentration