Table 3.

Growth performance for weaned piglet

Items	Ctrl	Mel	P-value
BW (kg)
Initial	9.88 ± 0.60	10.09 ± 0.70	0.825
First week	12.66 ± 0.70	13.51 ± 0.94	0.337
Second week	16.69 ± 1.21	16.53 ± 0.29	0.909
Final	20.92 ± 1.32	21.14 ± 0.46	0.892
ADG (kg/d)
First week	0.35 ± 0.03	0.36 ± 0.04	0.784
Second week	0.58 ± 0.08	0.43 ± 0.03	0.187
Third week	0.53 ± 0.05	0.58 ± 0.06	0.543
Days 0 to 23	0.48 ± 0.03	0.46 ± 0.04	0.675
ADFI (kg/d)
First week	0.44 ± 0.01	0.44 ± 0.03	0.987
Second week	0.66 ± 0.03	0.57 ± 0.02	0.017
Third week	0.89 ± 0.08	0.85 ± 0.02	0.724
Days 0 to 23	0.66 ± 0.04	0.62 ± 0.01	0.651
F:G
First week	1.32 ± 0.12	1.37 ± 0.21	0.405
Second week	1.11 ± 0.12	1.28 ± 0.12	0.243
Third week	1.69 ± 0.16	1.56 ± 0.06	0.800
Days 0 to 23	1.36 ± 0.03	1.41 ± 0.11	0.240

Ctrl, control; Mel, melatonin; BW, body weight; ADFI, average daily feed intake; ADG, average daily gain; F:G, feed-to-gain ratio; SEM, standard error of the mean.