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Table 3 Copper levels in liver, muscle and faecal samples taken at slaughter from lambs in a pen trial where they received no copper supplementation (Groups 1 and 4), mineral supplement containing copper (Groups 2 and 5), or COWP bolus (Groups 3 and 6).

From: Evaluation of Copper Supplementation to Control Haemonchus contortusInfections of Sheep in Sweden

Lamb Group Cu in liver (mg/kg) Cu in muscle (mg/kg) Cu in faeces (mg/kg) dwt.
Mean 1    22.9
Mean 2    19.7
2106 3 188 0,85  
Mean     147
2013 4 66 0,55  
2015 4 50 0,79  
2038 4 69 0,52  
Mean   62 0.62 27.9
2045 5 77 0,79  
2050 5 58 1,1  
2078 5 35 1,0  
Mean   57 0.96 22.7
2001 6 366 0,80  
2052 6 186 0,64  
2091 6 113 0,76  
Mean   222 0.73 21.9