Table 2.

Diet composition of lactation diets varying in L-lysine HCl, Exp. 2 (as-fed)

	Diet
Ingredient, %	1	2	3	4	5
Corn	58.00	61.01	63.97	66.94	66.89
Soybean meal, 46%	34.00	38.05	27.75	24.60	24.60
Choice White Grease	4.00	4.00	4.00	4.00	4.00
Monocalcium phosphate 21%	1.65	1.65	1.65	1.65	1.65
Limestone	1.35	1.35	1.35	1.35	1.35
Salt	0.50	0.50	0.50	0.50	0.50
Vitamin/trace mineral/phytasea	0.25	0.25	0.25	0.25	0.25
Choline chloride	0.10	0.10	0.10	0.10	0.10
L-lysine HCl	0.10	0.20	0.30	0.40	0.40
L-threonine	0.04	0.80	0.20	0.18	0.18
HMTBab	0.00	0.00	0.00	0.04	0.04
L-valine	0.00	0.00	0.00	0.00	0.06
Calculated Nutrients Composition
NRC ME, Mcal/kgc	3.450	3.450	3.450	3.450	3.450
Crude protein, %	21.09	19.97	18.87	17.76	16.72
SIDd Lys, %	1.12	1.12	1.12	1.12	1.12
SID M + Ce, %	0.62	0.58	0.55	0.55	0.55
SID Thr, %	0.73	0.73	0.73	0.73	0.73
SID Trp, %	0.22	0.21	0.19	0.18	0.18
SID Val, %	0.87	0.83	0.77	0.72	0.77
g SID Lys/Mcal NRC ME	3.24	3.24	3.24	3.24	3.24
SID M + C:Lys	0.55	0.52	0.49	0.49	0.49
SID Thr:Lys	0.65	0.65	0.65	0.65	0.65
SID Trp:Lys	0.20	0.19	0.17	0.16	0.16
SID Val:Lys	0.78	0.74	0.69	0.64	0.69

^aPremix supplied per kilogram of diet: vitamin A, 11,000 IU; vitamin D₃, 1,760 IU; vitamin E (DL-alpha tocopheryl acetate), 66 IU; vitamin K (menadione activity), 3.96 mg; riboflavin, 8.25 mg; D-pantothenic acid, 29.70 mg; niacin, 49.5 mg; vitamin B₁₂, 0.04 mg; D-Biotin, 0.22 mg; folic acid, 1.65 mg; pyridoxine, 5.1 mg; Zn (ZnSO₄), 170 mg; Cu (CuSO₄), 20 mg; Fe (FeSO₄), 170 mg; Mn (MnSO₄), 50 mg; I (ethylenediamine dihydriodide), 0.35 mg; and Se (Na₂SeO₃), 0.30 mg. Phytase was provided as Optiphos (Huevepharma, Sofia, Bulgaria) and added 750 phytase units/kg diet

^b ALIMET is a trademark of Novus International, Inc., and is registered in the United States and other countries. Methionine source. 88% 2-hydroxy, 4-methylthio butanoic acid, HMTBa

^cCalculated from NRC (1998)

^dSID Standardized ileal digestible

^eM + C Methionine + cysteine