TABLE A.2.
Details of the 20 studies available for organic selenium and analysed selenium concentration in tissues and products from food producing animals.
| Selenium concentrations | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Birds | Fish | Mammals | |||||||||||||
| Study | Source of selenium | Selenium supplementation (mg/kg) | Total selenium in complete feed (mg/kg) | Animal species/category | Fat skin (mg/kg) | Liver (mg/kg) | Muscle (mg/kg) | Offals (mg/kg) | Meat (mg/kg) | Fat (mg/kg) | Liver (mg/kg) | Muscle (mg/kg) | Offals (mg/kg) | Milk (mg/kg) | Whole eggs (mg/kg) |
| 1 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.24 | Chickens for fattening | 0.660 | 0.250 | 0.680 | ||||||||
| 2 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.25 | Chickens for fattening | 0.580 | 0.210 | 0.610 | ||||||||
| 3 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.27 | Chickens for fattening | 0.047 | ||||||||||
| 4 | Hydroxyanalogue of selenomethionine | 0.2 | 0.3 | Chickens for fattening | 0.380 | ||||||||||
| 5 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.31 | Chickens for fattening | 0.250 | ||||||||||
| 6 | Selenium from Saccharomyces cerevisiae | 0.15 | 0.29 | Laying hens | 0.366 | ||||||||||
| 7 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.227 | Laying hens | 0.220 | ||||||||||
| 8 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.227 | Laying hens | 0.220 | ||||||||||
| 9 | Selenium from Saccharomyces cerevisiae | 0.23 | 0.39 | Laying hens | 0.885 | 0.550 | 1.150 | ||||||||
| 10 | Hydroxyanalogue of selenomethionine | 0.25 | 0.52 | Fish | 0.450 | ||||||||||
| 11 | Hydroxyanalogue of selenomethionine | 0.2 | 0.33 | Piglets | 0.570 | 0.260 | 1.420 | ||||||||
| 12 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.42 | Pigs for fattening | 0.390 | 0.210 | |||||||||
| 13 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.42 | Pigs for fattening | 0.390 | 0.210 | |||||||||
| 14 | Selenium from Saccharomyces cerevisiae | 0.15 | 0.11 | Cattle for fattening | 0.590 | 0.140 | 1.380 | ||||||||
| 15 | Selenium from Saccharomyces cerevisiae | 0.15 | 0.264 | Cattle for fattening | 0.590 | 0.160 | |||||||||
| 16 | Selenium from Saccharomyces cerevisiae | 0.21 | 0.2816 | Lambs for fattening | 0.540 | 0.180 | 1.290 | ||||||||
| 17 | Selenium from Saccharomyces cerevisiae | 0.25 | 0.352 | Lambs for fattening | 0.680 | 0.220 | 1.660 | ||||||||
| 18 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.2464 | Dairy cows | 0.026 | ||||||||||
| 19 | Selenium from Saccharomyces cerevisiae | 0.2 | 0.27368 | Dairy cows | 0.041 | ||||||||||
| 20 | Selenium from Saccharomyces cerevisiae | 0.25 | 0.352 | Dairy cows | 0.051 | ||||||||||
|
Average + 2 Standard Deviation |
0.620 | 0.698 | 0.288 | ||||||||||||