Table 3 Effects of supplemental GLM and oregano EO blend on the broilers’ morphometric measures (μm) of the small intestine

Duodenum

Muscle thickness

121.80^c

114.23^c

168.8^b

229.10^a

10.30

0.00

0.00

0.05

Crypt depth

247.98^b

158.22^c

236.41^b

345.98^a

11.78

0.00

0.00

0.06

Villus height

582.39^b

1213.89^a

1185.71^a

1192.57^a

50.01

0.00

0.00

0.002

Goblet cell count

25^a

18.33^b

20^b

17.66^b

1.22

0.02

0.22

0.13

Jejunum

Muscle thickness

117.06^c

387.91^a

416.42^a

237.89^b

21.90

0.001

0.00

0.66

Crypt depth

252.83

278.4

216.46

222.06

10.60

0.05

0.54

0.05

Villus height

672.81^c

1070.14^b

962.60^b

1251.40^a

55.57

0.00

0.09

0.00

Goblet cell count

40.66^a

32.33^ab

27.66^b

25^b

1.48

0.00

0.16

0.84

Ileum

Muscle thickness

219.02^b

356.87^a

336.22^a

366.26^a

15.93

0.00

0.00

0.001

Crypt depth

117.06^b

209.70^a

133.64^b

138.99^b

8.59

0.81

0.002

0.00

Villus height

323.87^c

619.15^ab

562.82^b

634.54^a

23.81

0.00

0.00

0.00

Goblet cell count

70^a

55^b

45.33^b

52.66^b

2.37

0.001

0.004

0.37