Dietary Inclusion of a Mixed Powder of Medicinal Plant Leaves Enhances the Feed Efficiency and Immune Function in Broiler Chickens

Table 1

Composition and nutrient content.

Ingredients	Days 1 to 21
	T0	T1
Corn	55.94	55.66
Soybean meal, 44% CP	35.00	34.83
Canola oil	4.00	3.98
Calcium carbonate	1.50	1.48
Monocalcium phosphate	1.70	1.69
DL-methionine	0.19	0.19
L-lysine	0.01	0.01
L-threonine	0.06	0.06
Common salt	0.30	0.30
Vitamin-mineral premix^1	1.00	1.00
Titanium dioxide	0.30	0.30
Mixed powder of medicinal plants^2	—	0.50
Calculated composition, % as fed
Crude protein, %	22.01	21.94
Metabolizable energy, kcal/kg	3086	3074
Ca, %	1.11	1.09
Available P, %	0.48	0.46
SID^2 lysine, %	1.10	1.08
SID methionine, %	0.53	0.50

¹Provided per kilogram of diet: manganese, 55 mg; zinc, 50 mg; iron, 80 mg; copper, 5 mg; selenium, 0.1 mg; iodine, 0.36 mg; sodium, 1.6 g; retinyl acetate, 8,250 IU; cholecalcipherol, 1,000 IU; DL-alpha-tocopherol, 11 IU; cyanocobalamin, 0.012 mg; phylloquinone, 1.1 mg; niacin, 53 mg; choline, 1,020 mg; folacin, 0.75 mg; biotin, 0.25 mg; riboflavin, 5.5 mg. ²Mixed powder of medicinal plant leaves consisted in 60% of Anacardium occidentale 20% of Psidium guajava, and 20% of Morinda citrifolia.