Table 5.

Effect of guanidinoacetic acid (GAA) supplementation on growth performance of finishing pigs (120 to180 d of age) (Exp 2)

Item	CON1	T12	T23	T34	SEM5	P value6
BW at 120 d of age, kg	56.18	56.13	56.13	56.14	0.10	0.242
BW at 180 d of age, kg	96.67b	98.40a	97.58ab	97.10b	0.31	0.001
ADG, g/pig/day	675b	704a	691ab	682b	5.22	0.001
ADFI, g/pig/day	2415	2417	2410	2418	4.51	0.579
G:F	0.26b	0.29a	0.27ab	0.27b	0.03	0.003

^a,b,cWithin a row, means without a common superscript differ (P < 0.05).

¹CON = control (basal) diet.

²T1 = basal diet + 1.2 kg GAA/MT fed 60 d before slaughter.

³T2 = basal diet + 1.2 kg GAA/MT fed 40 d before slaughter.

⁴T3 = basal diet + 1.2 kg GAA/MT fed 25 d before slaughter.

⁵SEM = standard error of mean.

⁶Considered significant when P < 0.05.