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Table 1 Mineral contents in typical mineral imported supplements employed in feedingstuff manufacture

From: Inorganic contaminants and composition analysis of commercial feed grade mineral compounds available in Costa Rica

Assaya

Mean

SD

Median

Max

Min

Guideline value or guaranteed analysis

Calcium and phosphorus-containing mineral sources

Dicalcium phosphate, n = 22

Dry matter, g/100 g

97.3

2.5

98.2

100.0

90.9

>88

Calcium, g/100 g[1; 4.5 %]

26.2

2.9

26.0

32.7

21.4

21.0 – 27.0

Phosphorus, g/100 g[1; 4.5 %]

19.5

1.7

19.8

22.0

15.5

18.0 – 21.0

Monocalcium phosphate, n = 22

Dry matter, g/100 g

94.2

1.2

94.3

95.7

90.8

>88

Calcium, g/100 g[1; 4.5 %]

16.0

1.4

15,9

18.9

13.1

15.0 – 18.0

Phosphorus, g/100 g[1; 4.5 %]

21.0

1.2

20.9

23.6

18.0

21.0 – 23.0

Calcium carbonate, n = 21

Dry matter, g/100 g

99.9

0.1

99.9

100.0

99.6

>88

Calcium, g/100 g[2; 9.5 %]

37.8

2.8

36.4

41.8

28.9

37.5 – 39.0

Carbonate (as CaCO3), g/100 g

92.6

12.5

97.5

99.6

48.6

96.0 – 98.0

Iodine-containing mineral sources

Calcium iodate, n = 7

Dry matter, g/100 g

99.57

0.34

99.71

99.86

99.00

>88

Calcium, g/100 g

7.6

1.1

7.6

8.95

6.25

Not indicated

Iodide, g/100 g[1; 14.2 %]

61.4

4.7

62.6

64.7

50.3

63.5

Microgran™ I 10 % BMP (calcium iodide), n = 10

Dry matter, g/100 g

99.45

0.24

99.51

99.76

98.90

>88.0

Calcium, g/100 g

16.9

5.1

18.4

20.8

4.8

-

Iodide, g/100 g[4; 40.0 %]

8.1

2.6

8.1

11.9

4.4

10.0

Etilendiamine diiodide, n = 7

Dry matter, g/100 g

99.89

0.08

99.93

99.96

99.73

>88.0

Iodine, g/100 g[5; 83.3 %]

68.9

4.8

69.2

77.5

62.8

79.5

Potassium Iodide, n = 7

Dry matter, g/100 g

99.7

0.1

99.7

99.4

99.8

>88.0

Potassium, g/100 g

21.1

1.9

19.8

24.5

19.5

-

Iodine, g/100 gb

68.9

5.5

70.1

74.9

62.5

68.0

Cobalt-containing mineral sources

Cobalt carbonate, n = 13

Dry matter, g/100 g

94.68

3.36

96.47

99.00

88.40

>88.0

Cobalt, g/100 g[7; 53.8 %]

49.4

10.7

45.4

82.4

39.7

46.0

Carbonate (as CaCO3), g/100 g

62.4

14.4

68.8

84.1

43.9

Not indicated

Cobalt sulfate, n = 16

Dry matter, g/100 g

67.83

9.77

64.50

98.37

63.20

>88.0

Cobalt, g/100 g[2; 12.5 %]

23.2

3.4

25.8

27.7

21.0

19.5-21.0

Microgran™ Co 5 % BMP (cobalt carbonate), n = 13

Dry matter, g/100 g

97.9

0.6

97.7

100.0

97.3

>88.0

Carbonate (as CaCO3), g/100 g

7.9

1.8

7.2

13.5

6.1

Not indicated

Cobalt, g/100 gb

6.3

1.4

5.7

10.7

4.8

5.0

Copper-containing mineral sources

Copper oxide, n = 19

Dry matter, g/100 g

99.9

0.2

99.8

100.0

99.1

>88.0

Assaya

Mean

SD

Median

Max

Min

Guideline value or guaranteed analysis

Copper, g/100 g[3; 17.6 %]

71.7

5.9

71.3

85.0

59.6

75.0

Copper sulfate, n = 18

Dry matter, g/100 g

73.4

6.5

71.9

99.7

68.8

>88.0

Copper, g/100 g[2; 12.5 %]

25.1

2.1

24.6

31.4

22.4

25.0

Sodium containing mineral sources

Sodium chloride, n = 23

Dry matter, g/100 g

96.2

6.1

98.8

99.9

71.7

>88.0

Sodium, g/100 g

36.6

4.0

36.4

46.7

26.7

38.5

Chloride (as NaCl), g/100 g[4; 19.0 %]

99.7

3.3

98.0

99.8

87.4

98.0

Iron-containing mineral sources

Ferrous carbonate, n = 21

Dry matter, g/100 g

99.0

0.54

98.9

100.0

98.15

>88.0

Iron, g/100 g[3; 15.8 %]

35.9

4.2

35.4

46.6

27.3

38.0

Carbonate (as CaCO3), g/100 g

38.08

17.2

41.2

74.7

19.2

Not indicated

Ferric oxide, n = 16

Dry matter, g/100 g

99.1

97.2

99.9

88.3

100.0

>88.0

Iron, g/100 g

37.6

13.0

37.3

65.0

16.2

Not indicated

Ferrous sulfate, n = 17

Dry matter, g/100 g

75.4

17.3

62.6

99.1

62.0

>88.0

Iron, g/100 g[1; 6.3 %]

22.8

5.0

21.7

36.5

15.0

19.0

Magnesium-containing mineral sources

Magnesium oxide, n = 21

Dry matter, g/100 g

99.81

0.21

99.90

99.99

99.29

>88.0

Magnesium, g/100 g[6; 28.6 %]

42.1

15.1

40.5

85.4

22.4

50.0-54.0

Magnesium sulfate, n = 18

Dry matter, g/100 g

63.1

9.2

60.8

99.8

57.5

>88.0

Magnesium, g/100 gb

8.8

1.1

8.6

11.7

6.8

6.8-11.6

Manganese-containing mineral sources

Manganous oxide, n = 21

Dry matter, g/100 g

99.6

0.24

99.7

99.9

98.9

>88.0

Manganese, g/100 g[7; 35.0 %]

58.6

6.6

56.2

77.8

50.4

60.0-62.0

Manganese sulfate, n = 15

Dry matter, g/100 g

97.0

10.5

99.9

100.0

57.7

>88.0

Manganese, g/100 g[2; 13.3 %]

28.3

5.6

26.8

40.3

21.1

29.0-32.0

Sulfur-containing mineral sources

Elemental sulfur, n = 20

Dry matter, g/100 g

98.7

1.1

99.2

99.7

96.0

>88.0

Sulfur, g/100 g[4; 20.0 %]

98.4

1.7

99.0

99.6

93.7

99.5

Zinc-containing mineral sources

Zinc oxide, n = 22

Dry matter, g/100 g

99.5

1.7

99.9

100.0

91.5

>88.0

Zinc, g/100 g[1; 4.5 %]

76.0

12.3

72.4

108.4

58.3

72.0

Zinc sulfate, n = 18

Dry matter, g/100 g

99.85

0.17

99.96

100.0

99.45

>88.0

Assaya

Mean

SD

Median

Max

Min

Guideline value or guaranteed analysis

Zinc, g/100 g[8; 44.4 %]

32.4

4.1

32.0

43.2

25.1

35.0

Selenium-containing mineral sources

Microgran™ Se 1 % BMP (sodium selenite), n = 13

Dry matter, g/100 g

99.7

0.19

99.7

99.9

99.2

>88.0

Selenium, g/100 g

1.7

1.1

1.2

4.2

0.8

1.0

Sodium, g/100 g

0.63

0.12

0.61

0.93

0.49

Not indicated

Sodium selenite 1 %, n = 11

Dry matter, g/100 g

99.52

0.37

99.64

99.95

98.65

>88.0

Selenium, g/100 g

1.36

0.77

1.14

3.58

0.68

1.0

Sodium, g/100 g

1.03

1.42

0.62

5.50

0.21

Not indicated

Sodium selenite, n = 8

Dry matter, g/100 g

99.76

0.19

99.82

99.99

99.48

>88.0

Selenium, g/100 g

44.3

2.6

44.2

47.7

40.0

45-46

Sodium, g/100 g

24.1

3.25

24.6

29.3

19.0

26-27

Potassium-containing mineral sources

Potassium Chloride, n = 17

Dry matter, g/100 g

94.2

22.9

99.92

99.99

2.42

>88.0

Potassium, g/100 g[9; 53.9 %]

49.9

13.7

46.9

97.6

34.5

62

Chloride (as NaCl), g/100 g

87.6

12.4

91.4

99.3

44.8

Not indicated

  1. aNumbers in parenthesis represent the number (n) of samples with concentrations beneath the guaranteed analysis for a specific element. Concentrations considered were those which are not within the lower guaranteed range allowing for one SD (σ). bAll samples for this mineral are within the guaranteed range