70 

 Different Zn sources did not affect (P > .05) tissue Cu 

 contents . 



Kidney MT content followed the same pattern as Cu 

 concentrations with CuO being the lowest (P < .05) MT inducer 

 (Table 6-5) . There was no effect (P > .05) of Zn source on 

 tissue MT contents for any tissue and no Cu effect (P > .05) 

 for liver MT. 



TABLE 6-5. Mean tissue metallothionein 



concentrations for rats supplemented with 



different sources of Zn and Cu ( jLlg 

 MT/g a ) h . 



Sources Kidney Liver 



ZnS0 4 77 40 



ZnMet 7 6 42 



ZnLys 80 3 8 



CuO 68 c 46 



CuS0 4 82 d 38 



CuLys 84 d 37 



a (lg MT/g= |ag of Metallothionein per gram of wet 

 tissue . 



b SEM are as follows: kidney = 10, liver = 12. 

 c,d Means with different subscripts within column 

 and mineral differ (P < .05) . 



Phase 2 



Plasma Zn concentrations of depleted rats were not 

 affected (P > .05) by Zn or Cu source (Table 6-6) . Plasma Cu 

 concentrations of depleted rats, on the other hand, were lower 

 (P < .05) for CuO than CuLys supplemented rats. 



