Preliminary Study on the Effect of Bacillus amyloliquefaciens TL on Cecal Bacterial Community Structure of Broiler Chickens
Table 1
Growth performance in broiler chickens.
Parameters
Treatment
value
C
A
P
P vs. C
A vs. C
P vs. A
(Mean ± SD)
(Mean ± SD)
(Mean ± SD)
Body weight (g)
7 days
147.48 ± 11.08
146.50 ± 9.09
157.35 ± 8.58
n.s.
n.s.
14 days
499.75 ± 20.67
509.50 ± 46.20
532.50 ± 24.09
n.s.
n.s.
n.s.
21 days
858.62 ± 30.74
999.75 ± 64.47
1076.12 ± 98.48
35 days
1901.38 ± 76.36
2206.00 ± 263.57
2156.12 ± 198.61
n.s.
n.s.
Daily weight gain (g)
0–7 days
15.23 ± 1.38
15.22 ± 1.15
16.82 ± 1.08
n.s.
7–14 days
50.32 ± 1.51
51.86 ± 5.35
53.59 ± 2.33
n.s.
n.s.
n.s.
14–21 days
51.27 ± 1.74
70.04 ± 3.01
77.66 ± 10.74
21–35 days
80.21 ± 3.72
92.79 ± 16.24
83.08 ± 9.23
n.s.
n.s.
FCR (1–35 days)
2.02
1.63
1.62
n.s. means not significant (); significant (); extreme significant (). C = control group; A = chlortetracycline group; P = Bacillus amyloliquefaciens TL group; FCR: feed conversion ratio.
