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Table 2 Aflatxoin B1 concentrations in feedsa

From: Occurrence of Aflatoxin B1, deoxynivalenol and zearalenone in feeds in China during 2018–2020

Item

Year

NO. of

samples

Positive samples, μg/kg

Numbers of samples in the range, μg/kg

The rate of over standard, %

%

Mean

Medain

Maximum

< 0.5

0.5–10

10–30

30–50

> 50

Corn

2018

229

95.6

4.4

1.9

221.0

10

210

5

0

4

1.7

2019

249

81.9

3.9

2.1

221.0

45

197

6

0

1

0.4

2020

215

98.1

3.7

3.4

11.8

4

208

3

0

0

0

Dried distillers grains with soluble

2018

82

100

7.9

5.2

45.8

0

55

26

1

0

0

2019

22

100

7.8

6.2

17.9

0

14

8

0

0

0

2020

23

95.7

4.9

4.2

11.2

1

21

1

0

0

0

Corn germ meal

2018

28

100

7.0

3.5

40.2

0

24

2

2

0

0

2019

23

100

7.1

3.3

22.4

0

16

7

0

0

0

2020

10

100

7.5

4.6

30.8

0

8

1

1

0

0

Corn bran

2018

33

100

9.4

3.6

68.7

0

26

4

2

1

3.0

2019

19

100

4.3

3.3

17.9

0

18

1

0

0

0

2020

16

100

8.6

7.3

29.3

0

11

5

0

0

0

Corn gluten meal

2018

21

100

5.0

2.5

27.9

0

19

2

0

0

0

2019

4

100

7.8

3.9

21.1

0

3

1

0

0

0

2020

1

100

15.6

15.6

15.6

0

0

1

0

0

0

Wheat

2018

110

99.1

2.8

2.7

7.0

1

109

0

0

0

0

2019

34

97.1

3.4

3.2

8.2

1

33

0

0

0

0

2020

27

100

3.6

2.9

11.4

0

26

1

0

0

0

Wheat middling

2018

34

100

2.7

2.8

4.1

0

34

0

0

0

0

2019

46

100

6.5

2.8

77.5

0

43

1

0

2

4.3

2020

28

100

3.1

3.1

6.4

0

28

0

0

0

0

Wheat bran

2018

148

100

6.1

3.7

57.4

0

125

20

2

1

2.0

2019

86

100

4.3

3.4

12.3

0

81

5

0

0

0

2020

41

100

4.5

3.5

25.5

0

38

3

0

0

0

Soybean meal

2018

118

100

2.3

2.1

5.7

0

118

0

0

0

0

2019

23

100

2.8

2.3

6.1

0

23

0

0

0

0

2020

36

100

2.7

2.6

7.5

0

36

0

0

0

0

Wheat flour

2019

4

100

3.2

3.2

5.0

0

4

0

0

0

0

2020

13

100

3.0

3.3

5.5

0

13

0

0

0

0

Soybean bran

2018

1

100

1.8

1.8

1.8

0

1

0

0

0

0

2019

3

100

3.2

3.8

4.2

0

3

0

0

0

0

2020

19

100

4.1

3.4

9.3

0

19

0

0

0

0

Rapeseed meal

2018

24

100

8.5

6.8

14.9

0

16

8

0

0

0

2019

4

100

7.3

6.1

12.2

0

3

1

0

0

0

2020

5

100

3.7

3.6

5.6

0

5

0

0

0

0

Peanut meal

2018

27

100

23.1

13.7

59.7

0

9

9

5

4

14.8

2019

5

100

27.4

32.0

40.7

0

1

1

3

0

0

2020

9

100

12.7

13.6

21.1

0

4

5

0

0

0

Fish meal

2018

67

100

1.2

1.1

2.5

0

67

0

0

0

0

2019

12

100

1.2

1.2

1.7

0

12

0

0

0

0

Grass grain

2018

68

100

7.9

6.2

45.7

0

61

4

3

0

4.4

2019

41

100

4.1

3.8

9.2

0

41

0

0

0

0

2020

16

100

5.3

5.1

14.0

0

15

1

0

0

0

Unite bran

2018

12

100

6.3

6.3

7.8

0

12

0

0

0

0

2019

14

100

4.0

3.5

9.2

0

14

0

0

0

0

2020

15

100

3.4

2.9

11.8

0

14

1

0

0

0

Rice bran

2019

4

100

7.5

5.6

15.3

0

3

1

0

0

0

2020

14

100

3.7

3.3

7.4

0

14

0

0

0

0

Complete pig feed

2018

317

100

4.9

3.2

59.7

0

295

17

1

4

2.5

2019

214

100

4.0

2.9

20.9

0

197

17

0

0

0.5

2020

89

100

3.5

3.0

12.3

0

86

3

0

0

0

Complete poultry feed

2018

248

99.6

4.5

3.4

57.4

1

231

15

0

1

1.2

2019

144

100

5.7

4.3

31.5

0

127

15

2

0

2.8

2020

179

100

4.6

4.0

15.6

0

166

13

0

0

0

Complete ruminant feed

2018

117

100

8.5

3.8

77.5

0

99

9

3

6

8.5

2019

47

100

15.4

10.8

44.3

0

22

15

10

0

40.4

2020

62

100

4.7

4.2

12.7

0

59

3

0

0

0

  1. aPositive samples are defined as those with aflatxoin B1 ≥ 0.5 μg/kg (LOD)