72 

 Kidney Zn concentrations were lower (P < .05) resulting from 

 CuS0 4 supplementation than for CuO supplemented rats. 



There was an interaction effect for kidney Zn 

 concentrations after depletion. Kidney Zn concentrations 

 after depletion were highest (P < .05) for CuO and lowest (P 

 < .05) for CuS0 4 supplementation in the rats also receiving 

 ZnLys supplementation (Figure 6-2A) . There were no kidney Zn 

 differences (P > .05) from different Cu source for the ZnMet 

 or ZnS0 4 supplemented rats. Kidney Zn concentrations were 

 higher (P < .05) for ZnLys than ZnS0 4 supplemented rats that 

 were also given CuO supplementation, however, ZnLys had the 

 lowest (P < .05) kidney Zn concentrations when CuS0 4 was the 

 Cu source (Figure 6-2B) . There were no differences (P > .05) 

 in Zn source when CuLys was the Cu source. 



Most tissue Cu concentrations after depletion were not 

 affected (P < .05) by supplemental Cu source (Table 6-8) . In 

 liver, however, CuO supplemented rats had the lowest (P < .05) 

 Cu concentration. Different Zn sources did not affect (P > 

 .05) tissue Cu contents. 



There was no effect (P > .05) of Zn or Cu source on 

 tissue MT contents for any tissue after 1 wk of depletion 

 (Table 6-9) . 



