Table 1.

Ingredient composition of the experimental diets (as-fed basis, %)

	Diets1
Item	Control	SF	IF
Corn	41.79	42.11	42.40
Cornstarch	15.00	5.00	—
Soybean meal, 46.5% CP	15.00	15.00	15.00
DDGS2	—	—	15.00
Sugar beet pulp	—	10.00	—
Fish meal, menhaden select	5.00	5.00	5.00
Whey powder, >61% lactose	13.50	13.50	13.50
Casein	4.00	4.00	4.00
Soybean oil	2.50	2.50	2.50
Monocalcium phosphate	0.56	0.56	0.20
Limestone	0.95	0.73	1.10
Sodium chloride	0.25	0.25	0.25
l-Lys HCl	0.50	0.46	0.42
dl-Met	0.23	0.22	0.11
l-Thr	0.20	0.18	0.09
l-Trp	0.05	0.04	0.03
l-Val	0.07	0.05	-
Vitamin premix3	0.25	0.25	0.25
Trace mineral premix4	0.15	0.15	0.15
Calculated nutrient levels, %
ME, Mcal/kg	3.53	3.43	3.42
NE, Mcal/kg	2.68	2.53	2.50
CP	19.96	20.71	23.67
Ether extract	4.67	4.77	5.22
Neutral detergent fiber	5.04	9.56	10.16
Acid detergent fiber	2.00	4.35	4.55
Total dietary fiber	8.24	14.99	13.03
Starch	40.07	31.17	28.30
Calcium	0.80	0.80	0.80
Total P	0.60	0.61	0.64
STTD P	0.43	0.43	0.43
SID Lys	1.44	1.44	1.44
SID Met + Cys	0.79	0.79	0.79
SID Thr	0.85	0.85	0.85
SID Trp	0.26	0.26	0.26

¹SF = soluble fiber diets without or with carbohydrases; IF = insoluble fiber diets without or with carbohydrases; the carbohydrases were added on top of the SF and IF diets, with 0.01% pectinase (Pectinase ABE; 56 PE per kg of diet), 0.01% xylanase (Econase XT; 19,000 BXU per kg of diet), and 0.001% β-glucanase (Econase GT P; 23,200 BU per kg of diet), based on the manufacturer’s recommendations (AB Vista, Plantation, FL).

²Distiller’s dried grains with solubles.

³Provided per kilogram of diet: 7,656 IU vitamin A, 875 IU vitamin D, 63 IU vitamin E, 4 mg vitamin K, 70 mg niacin, 34 mg pantothenic acid, 14 mg riboflavin, and 0.06 mg vitamin B₁₂.

⁴Provided per kg of diet: 165 mg Zn (zinc sulfate), 165 mg Fe (iron sulfate), 39 mg Mn (manganese sulfate), 17 mg Cu (copper sulfate), 0.3 mg I (calcium iodate), and 0.3 mg Se (sodium selenite).