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Table 4 Effects of dietary selenium levels and sources on selenium tissue concentration of 17-d-old broiler chickens*

From: Selenium source and level on performance, selenium retention and biochemical responses of young broiler chicks

Selenium source1 Selenium levels, mg/kg Means SEM2 P-value
0.0 0.08 0.16 0.24 0.32 Source Level S X L3 L4 Q5
Liver, mg/kg
 Means 1.55 1.47 1.41 1.37 1.33   0.06 0.288 0.504 0.185 0.074 0.764
 SS 1.41 1.50 1.50 1.54 1.44 1.47      0.790 0.600
 SY 1.69 A 1.45 AB 1.36 AB 1.18 B 1.24 AB 1.38      0.006 0.343
Breast muscle, mg/kg
 Means 0.296 0.279 0.278 0.292 0.267   0.08 0.311 0.516 0.501 0.293 0.999
 SS 0.307 0.258 0.272 0.292 0.253 0.277      0.214 0.700
 SY 0.285 0.299 0.284 0.293 0.281 0.288      0.811 0.700
  1. * Values represented on a dry matter basis
  2. 1 SS sodium selenite, SY selenium enriched-yeast
  3. 2 Standard error of means
  4. 3 Interactive effects between selenium and trace minerals sources and selenium levels
  5. 4 Linear effect of supplementation selenium levels
  6. 5 Quadratic effect of supplementation selenium levels
  7. A-B Different uppercase letters in the same line are different by Tukey test at 5%