Table 5 Effects of tannic acid on the morphology of the ileal midsection of broiler chickens with NE

d 28

 Vill height, μm

725.53 ± 21.88^ab

627.54 ± 13.31^c

661.86 ± 27.71^bc

754.23 ± 28.68^a

769.97 ± 17.58^a

753.26 ± 23.13^a

< 0.001

< 0.001

0.045

 Crypt depth, μm

108.14 ± 3.55

123.09 ± 5.59

107.23 ± 4.13

113.97 ± 4.86

106.97 ± 2.87

109.87 ± 2.67

0.063

0.052

0.139

 V/C

6.72 ± 0.17^ab

5.15 ± 0.24^d

6.18 ± 0.15^c

6.64 ± 0.20^bc

7.21 ± 0.14^a

6.86 ± 0.14^ab

< 0.001

< 0.001

< 0.001

d 35

 Vill height, μm

768.86 ± 44.27

738.36 ± 56.62

753.24 ± 31.83

739.62 ± 28.06

711.84 ± 15.71

734.47 ± 28.10

0.924

0.658

0.992

 Crypt depth, μm

108.26 ± 4.29^b

130.62 ± 7.04^a

110.80 ± 2.86^b

102.90 ± 5.17^b

99.31 ± 2.95^b

104.97 ± 2.92^b

< 0.001

< 0.001

0.003

 V/C

7.08 ± 0.22^a

5.67 ± 0.35^b

6.79 ± 0.17^a

7.24 ± 0.23^a

7.20 ± 0.24^a

7.00 ± 0.20^a

< 0.001

< 0.001

0.002