Table 7 Intestinal morphological parameters of the anterior and posterior intestine of rainbow trout fed two experimental diets (n = 12)

Anterior Intestine

Villus height (µm)

285.7 ± 5.56

320.6 ± 9.77

<0.003

Villus width (µm)

84.45 ± 4.26

79.34 ± 4.03

0.39

Lamina propria width (µm)

46.12 ± 2.79

50.42 ± 2.91

0.29

Submucosa width (µm)

81.65 ± 2.43

84.98 ± 4.49

0.51

Posterior Intestine

Villus height (µm)

655.8 ± 30.99

605.7 ± 33.15

0.27

Villus width (µm)

120.8 ± 5.69

135.3 ± 6.66

0.10

Lamina propria width (µm)

49.52 ± 3.2

53.54 ± 3.72

0.42

Submucosa width (µm)

67.17 ± 3.56

88.16 ± 3.09

<0.0001