71 

 There were no main effects (Zn or Cu; P > .05) for the Zn 

 concentrations for most tissues of depleted rats (Table 6-7) . 



TABLE 6-6. Mean plasma Zn and Cu concentrations 

 for rats supplemented with different sources of Zn 

 and Cu for 4 wks and then depleted for 1 wk 

 (lig/ml) a . 



Sources Zn Cu 



ZnS0 4 1.7 .2 



ZnMet 2.0 .4 



ZnLys 1.6 .3 



CuO 1.8 . l b 



CuS0 4 1.7 .2 b ' c 

 CuLys 1^8 .5° 



a SEM are as follows: Zn = .34, Cu = .22. 



b,c Means with different subscripts within column and mineral 



differ (P < .05) . 



TABLE 6-7. Mean tissue Zn concentrations for rats 

 supplemented with different sources of Zn and Cu 

 for 4 wks and depleted for 1 wk (mg/kg, DMB a ) b . 



Sources Bone Kidney Liver Muscle 



ZnS0 4 



ZnMet 



ZnLys 



CuO 



CuS0 4 



CuLys 



153 



68 



66 



53 



155 



68 



69 



55 



157 



62 



70 



57 



153 



71 c 



67 



56 



158 



59 d 



71 



55 



154 



67 cd 



67 



54 



a DMB= Dry matter basis, bone also fat free. 



b SEM are as follows: bone = 5, kidney = 9, liver = 5, muscle 



= 8. 



,r - d Means with different subscripts within column and mineral 



differ (P < .05) . 



