Table 7. Statistically significant differences between means of relative frequency of abundance (%) of caecum bacterial species in one-day old and 41-day old chickens untreated (CON) and treated with L. acidophilus (LA).

	One-day	CON	LA	One-day vs CON	One-day vs LA	CON vs LA
Species	Mean			P-values
Lactobacillus johnsonii	11.36	2.44	4.17	0.009	0.004	0.410
Lactobacillus crispatus	6.14	5.61	2.12	0.005	0.005	0.192
Escherichia coli	4.80	0.40	0.50	0.016	0.022	0.751
Lactobacillus gasseri	2.73	0.37	0.45	0.006	0.008	0.676
Clostridium bolteae	1.74	0.80	1.16	0.003	0.039	0.130
Shigella boydii	1.43	0.03	0.03	0.0006	0.0009	0.794
Lactobacillus delbrueckii	1.30	0.23	0.28	0.019	0.028	0.609
Ruminococcus lactaris	1.18	0.17	0.30	0.046	0.106	0.451
Faecalibacterium prausnitzii	0.87	17.35	14.00	< 0.0001	0.0005	0.331
Subdoligranulum variabile	0.62	3.26	2.99	0.002	0.003	0.665