Short-term effect of supplemental yeast extract without or with feed enzymes on growth performance, immune status and gut structure of weaned pigs challenged with Escherichia coli lipopolysaccharide

Table 1 Composition of the basal diet, as-fed basis

Item	Percent
Ingredient
Corn	25.25
Wheat	19.00
Soybean meal	20.00
Canola meal	5.00
Fish meal-H	5.00
Dried whey	20.00
Vegetable oil	3.00
Limestone	0.83
Monocalcium phosphate	0.14
Iodized salt	0.26
Vitamin-trace mineral premix^a	1.00
L-Lys∙HCl	0.35
DL-Methionine	0.10
Threonine	0.07
Calculated nutrient content
DE, kcal/kg	3573
CP, %	22.3
Ca, %	0.80
Total P, %	0.65
Available P, %	0.43
SID Lys, %	1.36
SID Met, %	0.43
SID Thr, %	0.79
Analyzed composition
CP, %	23.5
Ca, %	0.86
Total P, %	0.77

^aProvided the following per kilogram of complete diet: 9000 IU of vitamin A; 1500 IU of vitamin D₃; 18 mg of vitamin E; 1.5 mg of vitamin K; 250 mg of choline; 30 mg of niacin; 27.5 mg of calcium pantothenate; 9.4 mg of riboflavin; 2 mg of pyridoxine; 25 μg of cyanocobalamin; 80 μg of biotin; 0.5 mg of folic acid; 18 mg of Cu from copper sulfate, 110 mg of Zn from zinc oxide, 0.2 mg of I from calcium iodide, 110 mg of Fe from ferrous sulfate, 50 mg of Mn from manganese dioxide, and 0.3 mg of Se from sodium selenite

ISSN: 2049-1891