. 2018 Apr 25;55(4):239–248. doi: 10.2141/jpsa.0170083

Table 2. Effect of feeding treatments on broiler live weight (g) and feed conversion (kg) according to each week of fattening.

Indicators	Treatments - experimental group				SEM	P-value
(n=30)	P1	P2	P3	P4	SEM	P-value
Age (weeks)	Broiler weight
3	854	859	880	868	4.98	0.268
4	1392^b	1371^b	1493^a	1453^a	11.48	<*0. 001*
5	1988^b	2006^b	2113^a	2021^ab	17.02	*0.042*
6	2506^c	2651^b	2800^a	2744^ab	25.56	<*0.001*
Weeks of fattening	Feed conversion
4	1.71^b	1.82^a	1.68^bc	1.61^c	0.021	<*0.001*
5	1.92^bc	1.90^c	1.96^b	2.04^a	0.013	<*0.001*
6	2.16^c	2.28^a	2.21^b	2.02^d	0.008	<*0.001*
4–6	2.04^a	2.01^b	1.96^c	1.90^d	0.007	<*0.001*
1st day–6th week	1.67^b	1.76^a	1.70^b	1.66^b	0.013	*0.003*

Treatments: P1, control; P2, 0.5% β-alanine+0.24% MgO; P3, 0.25% L-histidine+0.24 % MgO; P4, 0.20% β-alanine+0.10% L-histidine+0.24% MgO; ^{a, b}, P<0.05; SEM, standard error of treatment.