In-feed resin acids reduce matrix metalloproteinase activity in the ileal mucosa of healthy broilers without inducing major effects on the gut microbiota

Table 5 Effect of resin acids-supplementation on intestinal morphology and T-cell abundance of chickens on day 22

	Diet
	Control	Resin acids	p-value
Intestinal morphology (duodenum)
Villus height (µm)	1708 ± 163	1738 ± 128	0.84
Crypt depth (µm)	229 ± 36	222 ± 23	0.90
Villus to crypt ratio	7.84 ± 1.55	8.13 ± 1.05	0.97
CD3 area percentage
Duodenum	6.78 ± 2.12	4.78 ± 1.62	0.036
Ileum	14.54 ± 4.05	12.24 ± 4.88	0.27

Data represent the mean ± standard deviation. Analysis based on 10 measurements per section for villus height and crypt depth analysis or 3 microscopic fields of view per section for CD3 measurements.

ISSN: 1297-9716