Table 6 Intestinal biometric indices of Nile tilapia (O. Niloticus) for four experimental feeds

Villus height (µm)

291.23^a ± 0.47

243.00^b ± 0.53

244.66^b ± 0.88

291.47^a ± 0.73

Villus width (µm)

88.56^a ± 0.23

55.33^b ± 0.88

54.83^b ± 0.16

88.84^a ± 0.20

Muscular thickness (µm)

35.15^b ± 0.42

30.86^c ± 0.57

30.91^c ± 0.23

40.74^a ± 0.33

Goblet cells count

33.00^a ± 0.57

25.66^b ± 0.33

25.00^b ± 0.57

34.00^a ± 0.58