. 2024 Dec 18;66:62. doi: 10.1186/s13028-024-00782-6

Table 2.

Efficacy of GAA supplementation on WFI and FCR of broilers reared under HSD conditions

Stocking density (birds/m²)	GAA (g/kg feed)	Weekly Feed intake (g)					Feed conversion ratio (g/g)
Stocking density (birds/m²)	GAA (g/kg feed)	D 7	D 14	D 21	D 28	D 35	D 7	D 14	D 21	D 28	D 35
LSD	0	163.57	469.29^a	723.29^a	962.86^a	1194.86^a	1.04	1.32	1.24	1.26^ab	1.62^ab
LSD	0.6	160.29	448.57^ab	718.00^ab	959.57^ab	1189.43^ab	1.01	1.25	1.18	1.21^b	1.54^b
HSD	0	167.00	437.43^b	693.14^b	940.71^bc	1163.86^b	1.05	1.36	1.26	1.28^a	1.66^a
HSD	0.6	164.29	432.43^b	709.14^ab	937.14^c	1166.29^b	1.02	1.29	1.23	1.26^ab	1.62^ab
Pooled SEM		1.31	4.06	3.79	4.00	4.88	0.01	0.02	0.01	0.01	0.02
P value
SD		0.166	> 0.001	0.007	0.004	0.006	0.639	0.186	0.096	0.048	0.032
GAA		0.260	0.055	0.422	0.634	0.821	0.184	0.026	0.048	0.013	0.044
SD × GAA		0.913	0.230	0.118	0.984	0.617	0.949	0.988	0.642	0.287	0.526

P value in bold are statistically significant

WFI, weekly feed intake; FCR, feed conversion ratio; LSD, low stocking density (10 birds/m²); HSD, high stocking density (16 birds/m²); SD, stocking density; GAA, guanidinoacetic acid (0.6 g/kg) feed

^a,b,cDifferent superscript letters in the same column indicate a significant difference (P < 0.05). Pooled SEM: total SEM