Dietary supplementation with sodium gluconate improves the growth performance and intestinal function in weaned pigs challenged with a recombinant Escherichia coli strain

Table 1 Ingredients and contents of energy and nutrients of the basal diet (air-dry basis)

Items	Content
Ingredients (%)
Corn (DE 14.27 MJ/kg, CP 8.7%)	61.88
Soybean meal l (DE 13.5 MJ/kg, CP 40%)	21.98
Wheat Middling (DE 13.4 MJ/kg, CP 13%)	4.00
Dried whey (CP 12%)	3.00
Fish meal (CP 66%)	3.00
Soy protein concentrate (CP 65%)	1.50
CaHPO₄	1.25
Premix^a	1.00
Limestone (CaCO₃ > 35%)	0.69
NaCl	0.30
Acidifier (Citric acid > 99%)	0.30
Soybean oil	0.50
L-Lysine HCl (78.8% lysine) Sodium gluconate^b	0.25 0.25
Choline chloride	0.20
Mould inhibitor (Calcium propionate > 30%)	0.10
DL-Methionine (99% methionine	0.05
Nutrients composition
Digestible energy^b (MJ/kg)	14.22
Crude protein (%)^c	20.9
Total threonine (%)^c	0.74
Total methionine (%)^c	0.30
Total lysine (%)^c	1.15
Total tryptophan (%)^c	0.21
Total calcium (%)^c	0.70
Total phosphorus (%)^c	0.60
Available phosphorus (%)^b	0.32

^aPremix provided the following amounts of vitamins and trace minerals per kilogram of the complete diet: ferrum, 100 mg (FeSO₄·H₂O); copper, 150 mg (CuSO₄·5H₂O); manganese, 40 mg (MnSO₄·5H₂O); zinc, 100 mg (ZnSO₄·7H₂O); iodine, 0.5 mg (KI); selenium, 0.3 mg (Na₂SeO₃·5H₂O); vitamin A acetate, 3.66 mg; cholecalciferol, 0.10 mg; DL-α-tocopheryl acetate, 36.4 mg; menadione, 4 mg; thiamin, 6 mg; riboflavin, 12 mg; pyridoxine, 6 mg; cyanocobalamin, 0.05 mg; biotin, 0.2 mg; folic acid, 2 mg; niacin, 50 mg; D -calcium pantothenate, 25 mg
^bCalculated value
^cAnalyzed value