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Effects of Sunset Yellow FCF on immune system organs during different chicken embryonic periods


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Fig. 1

Application of point counting grid on histological sections of the spleen
Application of point counting grid on histological sections of the spleen

Fig. 2

Light microscopic images of peripheral blood smears on the 21st day of incubation. Eosinophils, heterophils, and lymphocytes were seen in the peripheral blood smear from chick embryos treated with SY2,000 (A) and SY1,000 (B)
Light microscopic images of peripheral blood smears on the 21st day of incubation. Eosinophils, heterophils, and lymphocytes were seen in the peripheral blood smear from chick embryos treated with SY2,000 (A) and SY1,000 (B)

Fig. 3

Light microscopic images of the thymus sections in different embryonic periods. A – the thymus section from a day 10 chick embryo in the control group; B – the thymus section from a day 21 chick embryo treated with SY200; C– the thymus section from a day 21 chick embryo treated with SY1,000 showing Hassall’s corpuscles; D – the thymus section from a day 21 chick embryo treated with SY2,000
Light microscopic images of the thymus sections in different embryonic periods. A – the thymus section from a day 10 chick embryo in the control group; B – the thymus section from a day 21 chick embryo treated with SY200; C– the thymus section from a day 21 chick embryo treated with SY1,000 showing Hassall’s corpuscles; D – the thymus section from a day 21 chick embryo treated with SY2,000

Fig. 4

The bursa of Fabricius sections in different embryonic periods. A – the bursa of Fabricius section from a day 21 chick embryo in the control group showing FAE and IFE; B – the bursa of Fabricius section from a day 10 chick embryo treated with SY200; C – the bursa of Fabricius section from a day 13 chick embryo treated with SY1,000 showing epithelial buddings; D – the bursa of Fabricius section from a day 13 chick embryo treated with SY2,000; E – normal histological image of bursa of Fabricius section from a day 16 chick embryo in the control group; F – the bursa of Fabricius section from a day 21 chick embryo treated with SY2,000
The bursa of Fabricius sections in different embryonic periods. A – the bursa of Fabricius section from a day 21 chick embryo in the control group showing FAE and IFE; B – the bursa of Fabricius section from a day 10 chick embryo treated with SY200; C – the bursa of Fabricius section from a day 13 chick embryo treated with SY1,000 showing epithelial buddings; D – the bursa of Fabricius section from a day 13 chick embryo treated with SY2,000; E – normal histological image of bursa of Fabricius section from a day 16 chick embryo in the control group; F – the bursa of Fabricius section from a day 21 chick embryo treated with SY2,000

Fig. 5

The spleen sections in different embryonic periods. A – normal histological image of a spleen section from a day 16 chick embryo in the control group; B – the spleen section from a day 21 chick embryo treated with SY200; C – the spleen section from a day 16 chick embryo treated with SY1,000 showing mononuclear cell infiltration; D – the spleen section from a day 21 chick embryo treated with SY2,000
The spleen sections in different embryonic periods. A – normal histological image of a spleen section from a day 16 chick embryo in the control group; B – the spleen section from a day 21 chick embryo treated with SY200; C – the spleen section from a day 16 chick embryo treated with SY1,000 showing mononuclear cell infiltration; D – the spleen section from a day 21 chick embryo treated with SY2,000

The proportions of peripheral blood leukocyte for the sampled days of incubation (%) ±SE

Day incubation ofGroupHeterophilEosinophilLymphocyteMonocyteBasophil
13thC+++++--
SY200+++++--
SY1,000+++++++--
SY2,000+++++++--
16thC++++++--
SY200++++++--
SY1,000++++++--
SY2,000++++++--
21stC58.83 ± 2.68

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

1.67 ± 0.21

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

37.83 ± 2.74

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

1.00 ± 0.26

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

0.50 ± 0.22
SY20054.00 ± 3.22

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

17.67 ± 1.28

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

26.50 ± 2.72

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

0.67 ± 0.33

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

1.66 ± 0.33
SY1,00024.00 ± 1.61

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

43.00 ± 3.62

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

30.50 ± 2.06

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

0.20 ± 0.21

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

0.83 ± 0.40
SY2,00027.17 ± 4.30

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

47.33 ± 4.89

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

24.50 ± 5.23

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

0.17 ± 0.16

Values within a column with no common superscripts are significantly (P < 0.05) different. + a few; ++ moderate; +++ mostly; ̶ not seen

0.83 ± 0.40

Measurement data of structures in the spleen and bursa of Fabricius according to days of incubation (mean ± SE)

Day of incubationGroupSpleen weight (g)Spleen capsule thickness (μm)Spleen volume (mL)CEFAE thickness (μm)IFE thickness (μm)
10thC0.001 ± 0.02.030 ± 0.112

Values within a column with no common superscripts are significant (P < 0.05)

0.452 ± 0.0420.04415.540 ± 1.233

Values within a column with no common superscripts are significant (P < 0.05)

17.642 ± 1.106

Values within a column with no common superscripts are significant (P < 0.05)

SY2000.001 ± 0.01.694 ± 0.195

Values within a column with no common superscripts are significant (P < 0.05)

0.480 ± 0.0330.04211.092 ± 1.161

Values within a column with no common superscripts are significant (P < 0.05)

14.945 ± 0.424

Values within a column with no common superscripts are significant (P < 0.05)

SY1,0000.002 ± 0.00.850 ± 0.317

Values within a column with no common superscripts are significant (P < 0.05)

0.451 ± 0.0270.04710.565 ± 0.366

Values within a column with no common superscripts are significant (P < 0.05)

13.882 ± 1.075

Values within a column with no common superscripts are significant (P < 0.05)

SY2,0000.002 ± 0.00.834 ± 0.285

Values within a column with no common superscripts are significant (P < 0.05)

0.485 ± 0.0280.0469.962 ± 1.120

Values within a column with no common superscripts are significant (P < 0.05)

13.862 ± 0.878

Values within a column with no common superscripts are significant (P < 0.05)

13thC0.050 ± 0.004

Values within a column with no common superscripts are significant (P < 0.05)

11.051 ± 1.8972.538 ± 0.3050.04616.178 ± 2.113

Values within a column with no common superscripts are significant (P < 0.05)

20.750 ± 1.492

Values within a column with no common superscripts are significant (P < 0.05)

SY2000.005 ± 0.001

Values within a column with no common superscripts are significant (P < 0.05)

10.399 ± 1.0701.784 ± 0.1470.04414.178 ± 1.662

Values within a column with no common superscripts are significant (P < 0.05)

16.882 ± 2.436

Values within a column with no common superscripts are significant (P < 0.05)

SY1,0000.006 ± 0.001

Values within a column with no common superscripts are significant (P < 0.05)

9.232 ± 0.8842.386 ± 0.1720.04111.142 ± 1.281

Values within a column with no common superscripts are significant (P < 0.05)

15.392 ± 1.162

Values within a column with no common superscripts are significant (P < 0.05)

SY2,0000.005 ± 0.001

Values within a column with no common superscripts are significant (P < 0.05)

7.587 ± 0.6392.172 ± 0.2180.04210.631 ± 0.414

Values within a column with no common superscripts are significant (P < 0.05)

14.355 ± 1.099

Values within a column with no common superscripts are significant (P < 0.05)

16thC0.115 ± 0.011

Values within a column with no common superscripts are significant (P < 0.05)

16.412 ± 1.1544.280 ± 0.3920.02916.166 ± 0.777

Values within a column with no common superscripts are significant (P < 0.05)

17.043 ± 1.187

Values within a column with no common superscripts are significant (P < 0.05)

SY2000.011 ± 0.001

Values within a column with no common superscripts are significant (P < 0.05)

15.892 ± 1.7594.952 ± 0.5890.04514.525 ± 0.997

Values within a column with no common superscripts are significant (P < 0.05)

14.135 ± 1.305

Values within a column with no common superscripts are significant (P < 0.05)

SY1,0000.009 ± 0.002

Values within a column with no common superscripts are significant (P < 0.05)

15.339 ± 1.2474.536 ± 0.5780.02812.015 ± 0.879

Values within a column with no common superscripts are significant (P < 0.05)

13.562 ± 0.613

Values within a column with no common superscripts are significant (P < 0.05)

SY2,0000.013 ± 0.001

Values within a column with no common superscripts are significant (P < 0.05)

12.424 ± 0.8224.473 ± 0.6820.03111.508 ± 0.408

Values within a column with no common superscripts are significant (P < 0.05)

12.525 ± 0.841

Values within a column with no common superscripts are significant (P < 0.05)

21stC0.089 ± 0.012

Values within a column with no common superscripts are significant (P < 0.05)

20.418 ± 1.413

Values within a column with no common superscripts are significant (P < 0.05)

6.832 ± 0.491

Values within a column with no common superscripts are significant (P < 0.05)

0.01921.025 ± 2.488

Values within a column with no common superscripts are significant (P < 0.05)

22.492 ± 2.609

Values within a column with no common superscripts are significant (P < 0.05)

SY2000.007 ± 0.001

Values within a column with no common superscripts are significant (P < 0.05)

16.386 ± 1.028

Values within a column with no common superscripts are significant (P < 0.05)

6.001 ± 0.378

Values within a column with no common superscripts are significant (P < 0.05)

0.02114.983 ± 2.056

Values within a column with no common superscripts are significant (P < 0.05)

19.708 ± 0.857

Values within a column with no common superscripts are significant (P < 0.05)

SY1,0000.009 ± 0.002

Values within a column with no common superscripts are significant (P < 0.05)

14.804 ± 0.807

Values within a column with no common superscripts are significant (P < 0.05)

4.576 ± 0.426

Values within a column with no common superscripts are significant (P < 0.05)

0.03114.798 ± 1.640

Values within a column with no common superscripts are significant (P < 0.05)

19.002 ± 1.641

Values within a column with no common superscripts are significant (P < 0.05)

SY2,0000.009 ± 0.001

Values within a column with no common superscripts are significant (P < 0.05)

14.168 ± 1.367

Values within a column with no common superscripts are significant (P < 0.05)

4.676 ± 0.143

Values within a column with no common superscripts are significant (P < 0.05)

0.02412.920 ± 0.836

Values within a column with no common superscripts are significant (P < 0.05)

12.572 ± 1.197

Values within a column with no common superscripts are significant (P < 0.05)

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Journal Subjects:
Life Sciences, Molecular Biology, Microbiology and Virology, other, Medicine, Veterinary Medicine