Debranching enzymes decomposed corn arabinoxylan into xylooligosaccharides and achieved prebiotic regulation of gut microbiota in broiler chickens

Table 3 Effects of specific arabinoxylan-degrading enzymes on growth performance of broiler chickens¹

Items	BWG, g	FI, g	F/G, g/g	EPI	MRT, %
Phase 1 (d 14 to 21)
CTL	466.53^b	632.27	1.355	929.70	0.00
EX	469.45^ab	633.11	1.371	932.16	1.39
EXA	456.82^b	637.35	1.374	907.06	0.00
EXF	486.15^a	644.08	1.327	988.55	0.00
XAF-1	462.57^b	630.08	1.353	931.74	2.78
XAF-2	467.67^b	631.73	1.326	940.83	1.39
XAF-3	465.08^b	629.63	1.354	915.86	1.39
XAF-4	473.08^ab	627.56	1.327	928.83	2.78
SEM	2.192	3.539	0.006	6.920	0.554
P-value	0.044	0.971	0.137	0.136	0.824
Phase 2 (d 5 to 21)
CTL	789.08	1045.78	1.325	391.36	0.00
EX	799.65	1065.37	1.332	389.20	1.39
EXA	796.05	1057.27	1.328	387.52	1.39
EXF	831.80	1076.85	1.305	420.42	0.00
XAF-1	795.80	1058.14	1.339	387.21	4.17
XAF-2	795.35	1049.67	1.323	396.60	1.39
XAF-3	804.93	1063.23	1.323	400.86	1.39
XAF-4	796.18	1054.51	1.325	400.50	2.78
SEM	4.753	6.150	0.003	2.857	0.590
P-value	0.478	0.958	0.065	0.055	0.717

¹Values are given as the means based on six birds for each treatment (n = 6). The abbreviations of the groups are consistent with those in Table 2
BWG Body weight gain, g; FI Feed intake, g; F/G Feed-to-gain ratio, g/g; EPI European comprehensive production index; MRT Mortality, %; SEM Standard error of the mean
^a,b Means in a column with superscripts without a common letter differ (P < 0.05)

ISSN: 2049-1891