Table 5. Effect of dietary 3,4,5-trihydroxybenzoic acid and oregano supplementation on intestinal morphology of coccidiosis challenged broiler chickens1)

Period Dietary treatment2) SEM p-value
NCNT CNT THB COM 100 COM 150 COM 200
Villus height (µm)
 4 dpi 873.25 743.82 810.59 785.06 754.67 812.24 17.330 0.308
 7 dpi 877.45b 427.76a 577.46a 581.74a 508.52a 540.85a 33.207 0.001
Crypt depth (µm)
 4 dpi 123.28 127.04 143.64 124.05 116.49 123.34 3.322 0.281
 7 dpi 89.21a 263.91b 208.07b 249.08b 254.70b 237.39b 13.300 0.001
Villus height : Crypt depth ratio (V : C)
 4 dpi 7.38 6.07 5.83 6.53 6.65 6.92 0.210 0.322
 7 dpi 10.18b 1.66a 2.99a 2.63a 2.04a 2.39a 0.633 0.001
Values are the mean of six replicates per treatment.
NCNT, non-challenged without any dietary treatment; CNT, challenged without any dietary treatment; THB, CNT with 3,4,5-trihydroxybenzoic acid at 0.1 g per kg; COM 100, CNT with combination of THB and oregano extract at 0.1 g per kg; COM 150, CNT with combination of THB and oregano extract at 0.15 g per kg; COM 200, CNT with combination of THB and oregano extract at 0.2 g per kg.
Values in a row with different superscripts differ significantly (p < 0.05).
dpi, days post-infection.