Dietary Macleaya cordata extract supplementation improves the growth performance and gut health of broiler chickens with necrotic enteritis

Table 1 Ingredients and composition (calculated and analyzed nutrients) of the experimental diets¹ (%, unless otherwise noted, as-fed basis)

Item	d 1 to 21	d 22 to 30
Composition, %
Corn (7.8% CP)	51.38	60.02
Soybean meal (46% CP)	40.71	25.54
Corn protein flour	0.00	5.66
Soybean oil	3.75	3.32
Wheat flour	0.00	2.00
CaHPO₃·2H₂O	1.86	1.33
Stone powder (37%)	1.24	1.14
Sodium chloride	0.35	0.35
DL-Methionine (98%)	0.20	0.070
L-Lysine HCl (98%)	0.00	0.19
Vitamin premix²	0.03	0.03
Mineral premix³	0.20	0.20
Choline chloride (50%)	0.25	0.16
Sandoquin (Ethoxyquinoline)	0.030	0.00
Calculated nutrient levels⁴
Metabolizable energy, kcal/kg	2,928.97	3,100.00
Crude protein	21.76	20.00
Calcium	1.01	0.90
Available phosphorus	0.44	0.35
Lysine	1.14	1.00
Methionine	0.54	0.40

¹Diets were in mash form
²Vitamin premix provided per kg of complete diet: vitamin A (retinylacetate), 9,500 IU; vitamin D₃ (cholecalciferol), 2,500 IU; vitamin E (DL-α-tocopherol acetate), 30 IU; vitamin K₃ (menadione sodium bisulfate), 2.65 mg; vitamin B₁₂ (cyanocobalamin), 0.025 mg; biotin, 0.30 mg; folic acid, 1.25 mg; nicotinic acid, 50 mg; D-pantothenic acid, 12 mg; pyridoxine hydrochloride, 6.0 mg; riboflavin, 6.5 mg; thiamine mononitrate, 3.0 mg
³Mineral premix provided per kg of complete diet: iron, 80 mg; copper, 8 mg; manganese, 100 mg; zinc, 80 mg; iodine, 0.35 mg; selenium, 0.15 mg
⁴Calculated value based on the analysis of experimental diets

ISSN: 2049-1891