Table 2 Small intestine morphology of male offspring of ducks at 2, 5, and 10 weeks of age

2 W

Ileum

H

561.83 ± 159.73

212.13 ± 26.38

2.69 ± 0.83

260.83 ± 35.13

L

601.61 ± 40.02

200.70 ± 16.14

3.03 ± 0.14

249.60 ± 7.27

P value

0.70

0.56

0.52

0.60

Jejunum

H

721.38 ± 96.77

149.54 ± 22.56

4.94 ± 0.37

238.45 ± 6.31

L

630.69 ± 110.83

196.06 ± 41.35

3.51 ± 1.38

277.71 ± 63.42

P value

0.35

0.16

0.16

0.30

Duodenum

H

876.68 ± 67.99

208.04 ± 21.46

4.54 ± 0.56

311.51 ± 44.77

L

735.46 ± 89.78

243.28 ± 15.88

3.09 ± 0.31

327.49 ± 14.66

P value

0.10

0.08

0.02

0.60

5 W

Ileum

H

796.40 ± 161.72

180.98 ± 4.44

4.55 ± 0.89

260.46 ± 6.73

L

748.70 ± 43.48

198.45 ± 19.35

3.94 ± 0.31

305.32 ± 72.39

P value

0.73

0.34

0.45

0.50

Jejunum

H

1129.52 ± 98.97

227.85 ± 18.62

5.01 ± 0.17

264.51 ± 19.84

L

996.26 ± 204.34

212.72 ± 16.95

4.70 ± 0.62

242.92 ± 11.74

P value

0.37

0.36

0.46

0.20

Duodenum

H

1159.96 ± 76.61

220.82 ± 28.28

5.42 ± 1.07

287.45 ± 42.36

L

1120.97 ± 127.29

269.10 ± 31.74

4.29 ± 0.68

315.50 ± 56.67

P value

0.67

0.12

0.20

0.50

10 W

Ileum

H

755.88 ± 31.57

215.26 ± 52.94

3.64 ± 0.71

451.44 ± 128.98

L

632.75 ± 125.11

148.96 ± 14.78

4.31 ± 0.44

246.14 ± 41.65

P value

0.31

0.23

0.37

0.20

Jejunum

H

1049.83 ± 5.40

211.84 ± 17.45

5.31 ± 0.57

339.10 ± 60.53

L

828.11 ± 33.93

163.52 ± 11.23

5.30 ± 0.22

262.07 ± 22.94

P value

0.01

0.08

0.99

0.20

Duodenum

H

1023.59 ± 67.05

282.27 ± 52.07

3.72 ± 0.91

439.68 ± 73.37

L

1150.33 ± 68.74

247.31 ± 1.61

4.67 ± 0.32

451.52 ± 72.12

P value

0.20

0.44

0.30

0.90