Table 7.

N balance as calculated through performance data (16 wks to finish, 55 to 92 kg) using the equation ADG×0.16/6.25 = N retention

Dietary treatments	ADG (g/d)	ADFI (g/d)	N intake (g/d)	N retention (g/d)	N excretion (g/d)
193 g/kg CP, 8.2 g/kg lysine	957	2,304	71.0	24.5	46.5
184 g/kg CP, 8.3 g/kg lysine	942	2,325	68.3	24.1	44.2
169 g/kg CP, 8.3 g/kg lysine	926	2,265	61.1	23.7	37.4
156 g/kg CP, 8.0 g/kg lysine	935	2,295	57.2	23.9	33.3
143 g/kg CP, 8.2 g/kg lysine	963	2,271	51.9	24.7	27.2
192 g/kg CP, 6.4 g/kg lysine	929	2,285	70.2	23.8	46.4
179 g/kg CP, 6.6 g/kg lysine	905	2,361	67.7	23.2	44.5
167 g/kg CP, 7.1 g/kg lysine	930	2,291	61.2	23.8	37.4
153 g/kg CP, 7.4 g/kg lysine	943	2,324	57.3	24.1	33.2
144 g/kg CP, 7.0 g/kg lysine	925	2,302	52.9	23.7	29.2

n = Eight replicates/treatment. Each replicates is a pen average of 10 pigs.