Overview
Kletikova and colleagues measured blood-serum mineral concentrations in control and feed-additive-treated Japanese laying quails. This is in-scope a4 animal biomonitoring and feed-additive exposure context, not pet-supplement or product occurrence.
Key numbers
The experimental group received a feed additive containing magnesium, B vitamins, and L-carnitine at 0.25 ml/liter of water for 120 days. At 120 days, blood serum was collected from 10 control quails and 10 experimental quails.
Table 1 reports macronutrients in blood serum, mg/l:
| Parameter | Control group | Experimental group |
|---|---|---|
| Calcium | 87.21 +/- 4.46 | 83.31 +/- 0.18** |
| Potassium | 169.59 +/- 7.13 | 165.73 +/- 2.24 |
| Magnesium | 23.76 +/- 1.34 | 25.15 +/- 0.11* |
| Sodium | 3200.03 +/- 114.32 | 3292.18 +/- 17.68* |
| Phosphorus | 78.98 +/- 4.15 | 64.49 +/- 1.83** |
Table 2 reports essential trace elements in blood serum, mg/l:
| Parameter | Control group | Experimental group |
|---|---|---|
| Iron | 1536.00 +/- 237.43 | 1345.60 +/- 21.32** |
| Copper | 762.40 +/- 38.56 | 710.80 +/- 13.28** |
| Zinc | 707.18 +/- 46.84 | 658.24 +/- 9.68** |
| Selenium | 128.80 +/- 13.37 | 125.20 +/- 1.16 |
| Molybdenum | 29.67 +/- 3.23 | 24.09 +/- 1.27** |
| Chromium | 0.69 +/- 0.13 | 0.70 +/- 0.05 |
| Manganese | 0.53 +/- 0.08 | 0.68 +/- 0.02* |
| Cobalt | 0.24 +/- 0.06 | 0.24 +/- 0.01 |
Table 3 reports roughly essential trace elements in blood serum, mg/l:
| Parameter | Control group | Experimental group |
|---|---|---|
| Silicon | 315.70 +/- 6.24 | 301.70 +/- 4.38 |
| Boron | 34.02 +/- 1.23 | 34.59 +/- 1.46 |
| Arsenic | 4.07 +/- 0.08 | 3.50 +/- 0.02** |
| Lithium | 3.30 +/- 0.33 | 4.60 +/- 0.28* |
| Nickel | 3.85 +/- 0.62 | 4.17 +/- 0.22* |
Table 4 reports roughly toxic trace elements in blood serum, mg/l:
The abstract summarizes the feed-additive effect as decreases in phosphorus (18.30%), iron (12.29%), copper (6.76%), zinc (6.92%), molybdenum (18.80%), arsenic (14.00%), and cadmium (12.50%), and increases in magnesium (5.85%), manganese (28.31%), nickel (39.40%), lithium (8.32%), titanium (11.96%), lead (16.13%), mercury (13.34%), and antimony (14.29%) relative to the control group.
Methods (brief)
Two groups of one-day-old Japanese quails were raised during 2020-2021. The control group received pure boiled water, while the experimental group received the feed additive in water at 0.25 ml/l until 120 days. Blood was collected from the axillary vein before feeding. Trace elements were measured by mass spectrometry in a licensed laboratory; toxic elements and arsenic were analyzed under cited Russian GOST methods. Data were processed in Excel.
Related evidence
Update history
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