Treated cows had lower mean log10 SCC compared to control cows ( 4.9 vs. 5.24 ( SEM 0.11 ) log10 cells/mL ) and had lower overall concentration of TBARS ( 1.47 vs. 1.59 ( SEM 0.016 ) nM/mL ; p < 0.001 ) , but similar concentrations of ROM and OXY in serum .