53 



FIGURE 5-1. Serum Cu concentrations for sheep supplemented 

 with toxic levels of CuS0 4 (77 and 288) and CuLys (1 and 46) . 



10 20 30 40 50 60 



Days on trial 



70 80 



FIGURE 5-2. Serum Zn concentrations for sheep supplemented 

 with toxic levels of CuS0 4 (77 and 288) and CuLys (1 and 46) . 



