Oregano Essential Oil Improves Intestinal Morphology and Expression of Tight Junction Proteins Associated with Modulation of Selected Intestinal Bacteria and Immune Status in a Pig Model

Table 1

Composition and analysis of the basal diet.

	Basal diet
Composition (g/kg)
Wheat	380.00
Corn, grains	464.10
Soybean meal (46%)	89.00
Monocalcium phosphate	14.00
Limestone	7.00
Mycetes adsorbent	1.50
Antimildew agent	0.50
Salt	3.50
Soybean oil	20.00
Ethoxyquin	0.25
Probiotics	0.20
Y402 premix^†	20.00
Analysis^‡
Dry matter, DM (%)	86.80
Metabolism energy (MJ/kg)	13.20
Crude protein, CP (%)	13.90
Crude fiber (%)	2.80
Ash (%)	3.60
Fat (%)	4.30
Calcium (%)	0.60
Phosphorus (%)	0.60

Control group (C) was fed with the above basal diet, whereas the oregano essential oil (OEO) group consumed the basal diet supplemented with 25 mg/kg OEO.
^†Premix contained per kg 10.5 g Fe, 1.4 g Cu, 8.5 g Zn, 4 g Mn, 7.5 mg Se, 30 mg I, 350 kIU of vitamin A, 40 kIU of vitamin D3, 1.5 kIU of vitamin E, 50 mg of vitamin K3, 50 mg of vitamin B1, 150 mg of vitamin B2, 100 mg of vitamin B6, 0.1 mg of vitamin B12, 86.4 g lysine, 17.5 g methionine, 25 g threonine, 4 g phytase, and 15 g choline (kIU: 1000 international units).
^‡Metabolism energy was calculated from data provide by Feed Database in China (1999).