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Table 5 Effects of Zn sources and dietary CuSO4 on tissue mineral content (Experiment 3)1

From: Superior growth performance in broiler chicks fed chelated compared to inorganic zinc in presence of elevated dietary copper

Cu levels, mg/kg

Zn sources, 30 mg/kg

Tibia Zn (ash based), mg/kg

Tibia Cu (ash based), mg/kg

Liver Zn (dry wt. based), mg/kg

Liver Cu (dry wt. based), mg/kg

8

Zn(HMTBa)2

143

6.5

104

13.5

250

Zn(HMTBa)2

154

11.8

69

169.7

8

Zn-MET

140

6.0

93

13.3

250

Zn-MET

147

10.2

57

128.2

SEM

 

8

0.8

24

19.8

Main effect means

Cu level

 
 

8

141

6.23b

98

13.4b

 

250

150

11.0a

63

150a

Zn source

 
 

Zn(HMTBa)2

148

9.14

86

91.6

 

ZnSO4

143

8.11

75

70.8

2 × 2 factorial arrangement, P value

Zn source

 

0.543

0.229

0.653

0.296

Cu level

 

0.231

<0.001

0.168

<0.001

Zn Source* Cu level

 

0.780

0.513

0.981

0.301

  1. 1 One bird per pen was killed for tissue collection, total of six birds per treatment
  2. a,bMeans within a column with no common superscripts differ (P < 0.05)