Table 1.

Effect of LA on growth performance of broilers.

Items	CON	ANT	LA500	LA1000	P-value
BW(g)
1 d	39.26 ± 0.41	39.25 ± 0.49	39.08 ± 0.38	39.21 ± 0.35	0.989
21 d	816.22 ± 10.37b	859.31 ± 14.45ab	851.93 ± 13.28ab	877.94 ± 16.35a	0.028
42 d	2451.63 ± 43.68b	2565.50 ± 35.43a	2564.13 ± 24.76a	2609.74 ± 37.74a	0.028
ADG(g/d)
1–21 d	26.45 ± 0.52b	28.07 ± 0.32a	27.89 ± 0.45ab	26.87 ± 0.31ab	0.024
22–42 d	86.07 ± 2.06	89.34 ± 1.59	90.11 ± 1.35	91.15 ± 2.25	0.263
1–42 d	58.84 ± 1.06b	61.4 ± 0.81ab	61.59 ± 0.61ab	62.70 ± 0.92a	0.027
ADFI
1–21 d	44.99 ± 0.43a	41.21 ± 0.67b	43.31 ± 1.51ab	40.63 ± 0.67b	0.008
22–42 d	223.21 ± 3.98	240.46 ± 4.79	244.70 ± 4.03	244.36 ± 9.33	0.052
1–42 d	102.65 ± 1.59b	105.93 ± 1.50ab	110.00 ± 1.47a	107.68 ± 2.24ab	0.038
FCR
1–21 d	1.70 ± 0.03a	1.48 ± 0.02b	1.56 ± 0.06b	1.51 ± 0.03b	0.001
22–42 d	1.73 ± 0.04	1.79 ± 0.03	1.81 ± 0.03	1.78 ± 0.09	0.734
1–42 d	1.75 ± 0.02	1.73 ± 0.02	1.79 ± 0.02	1.72 ± 0.05	0.379

CON, a basal diet; ANT, a basal diet + 75 mg/kg antibiotic; LA₅₀₀, a basal diet + 500 mg/kg lauric acid; LA₁₀₀₀, a basal diet + 1000 mg/kg lauric acid; ADG, average daily gain; ADFI, average daily feed intake; BW, body weight; FCR, feed conversion ratio. Data were shown as Mean ± SEM and analyzed by one-way ANOVA Tukey's test. Different letters (a, b, c) in each parameter represent significant (P < 0.05).