Dietary oregano aqueous extract improves growth performance and intestinal health of broilers through modulating gut microbial compositions

Table 2 Ingredients and nutrients composition of Exp. 2 diets

Ingredients, %	Starter	Finisher
Corn	57.27	60.99
Soybean meal	35.20	30.00
Cottonseed meal	2.00	4.00
Soybean oil	2.00	2.00
NaCl	0.36	0.35
Limestone	2.00	1.70
Calcium hydrogen phosphate	0.30	0.30
Choline chloride	0.05	0.05
L-lysine hydrochloride	0.14	0.06
Mineral premix^a	0.30	0.30
Phytase	0.10	0.10
Vitamin premix^b	0.03	0.03
DL-methionine	0.25	0.12
Total	100.00	100.00
Nutritional level^c, %
Apparent metabolizable energy, kcal/kg	2,949.26	3,044.86
Crude protein	21.91	19.89
Calcium	0.96	0.91
Total phosphorus	0.61	0.60
Available phosphorus	0.40	0.40
Methionine	0.57	0.45
Methionine + Cysteine	0.90	0.75
Lysine	1.21	1.05

^aMineral premix provided the following per kg of the diet: Mn, 80 mg; I, 0.40 mg; Fe, 80 mg; Cu, 10 mg; Zn, 70 mg; Se, 0.30 mg
^bVitamin premix provided the following per kg of the diet: vitamin A, 250,000 IU; vitamin D, 50,000 IU; vitamin K₃, 53 mg; vitamin B₁, 40 mg; vitamin B₂, 120 mg; vitamin B₁₂, 0.50 mg; vitamin E, 600 IU; biotin, 0.65 mg; folic acid, 25 mg; pantothenic acid, 240 mg; niacin, 1,000 mg
^cThe nutrient levels were calculated values

ISSN: 2049-1891