Table 2.

Diet composition (as-fed basis), Exp. 1¹

	Formulated SID2 Lys, %
Item	1.10	1.60	Common phase
Ingredient, %
Corn	59.06	48.15	63.77
Soybean meal, 48% CP	26.89	27.05	32.86
Dried whey	10.00	10.00	–
Limestone	1.00	1.00	0.98
Monocalcium phosphate, 22% P	1.60	1.50	1.10
Salt	0.30	0.30	0.35
L-Lys-HCl	0.25	0.55	0.3
DL-Met	0.13	0.33	0.12
L-Thr	0.10	0.26	0.12
L-Trp	0.02	0.06	–
L-Val	0.01	0.15	–
Trace mineral premix3	0.15	0.15	0.15
Vitamin premix4	0.25	0.25	0.25
Zinc oxide	0.25	0.25	–
HP 3005	–	10.00	–
Total	100.00	100.00	100.00
Calculated analysis6
SID AA, %
Lys	1.10	1.60	1.22
Ile:Lys	64	57	63
Leu:Lys	133	109	129
Met:Lys	35	40	33
Met & Cys:Lys	60	59	57
Thr:Lys	65	65	63
Trp:lys	20.4	20.3	18.7
Val:Lys	70	70	69
Total Lys, %	1.23	1.77	1.37
ME, kcal/kg	3,256	3,302	3,272
NE, kcal/kg	2,427	2,407	2,407
SID Lys:ME, g/Mcal	3.38	4.84	3.73
SID Lys:NE, g/Mcal	4.57	7.44	5.16
CP, %	19.3	24.7	21.4
Ca, %	0.82	0.83	0.70
P, %	0.76	0.79	0.64
Available P, %	0.48	0.48	0.41

¹Dietary treatments 1.10 and 1.60% SID Lys were manufactured and blended at the feed mill to create the intermediate levels of 1.20, 1.30, 1.40, and 1.50% SID Lys.

²SID = Standardized ileal digestible.

³Provided per kilogram of premix: 22 g Mn from manganese oxide; 73 g Fe from iron sulfate; 73 g Zn from zinc sulphate; 11 g Cu from copper sulfate; 198 mg I from calcium iodate; and 198 mg Se from sodium selenite.

⁴Provided per kilogram of premix: 3,527,360 IU vitamin A; 881,840 IU vitamin D3; 17,637 IU vitamin E; 3,307 mg riboflavin; 1,764 mg menadione; 11,023 mg pantothenic acid; 33,069 mg niacin; and 15.4 mg vitamin B12.

⁵Hamlet Protein, Findley, OH.

⁶ NRC (2012).