Table 4. Effect of reducing SID Lys: NE ratios on nutrient digestibility in finishing pigs (phase 2)

Items (%)	CON	TRT1	TRT2	SE
42 day
Dry matter	80.39¹⁾	79.79	78.39	0.98
Nitrogen	77.37	77.45	77.23	0.94
Gross energy	78.44	77.34	77.13	1.22
77 day
Dry matter	79.51	79.40	77.01	0.95
Nitrogen	79.78^a	77.79^ab	76.22^b	1.03
Gross energy	76.68	76.24	74.87	1.15

Each mean represents 4 pens with 6 pigs each per treatment. CON (CP: 17.0%, SID Lys: 0.84%, NE: 10.38 MJ/kg, SID Lys: NE: 0.79 g/MJ); TRT1 (CP: 15.8%, SID Lys: 0.80%, NE: 10.38 MJ/kg, SID Lys: NE: 0.75 g/MJ); TRT2 (CP: 14.8%, SID Lys: 0.70%, NE: 10.38 MJ/kg, SID Lys: NE: 0.65 g/MJ).
Within a row, mean with different superscript differ (p < 0.05).
SE, standard error; CP, crude protein; SID Lys, standardized ileal digestible lysine; NE, net energy.