Table 6 Effect of dietary para-probiotic on intestinal histo-morphometry in broiler chickens.

Parameter	Dietary treatment					SEM		P-value
Parameter	T1	T2	T3	T4	T5	T6		P-value
Villus width (µm)	110.28^a	118.78^a	123.16^a	129.25^a,b	146.20^b	145.55^b	5.23	0.024
Villus height (µm)	1086.1^a	1089.7^a	1156.80^a,b	1245.19^a,b	1290.40^b	1280.22^b	18.7	0.019
Crypt depth (µm)	190.8^a	187.2^a	207.31^a,b	212.0^b	225.22^b	220.10^b	7.90	0.034
VH:CD	5.69	5.82	5.58	5.87	5.73	5.82	0.72	0.069

Mean values bearing the same superscript in a row did not differ significantly (P < 0.05).
T₁ = control, T₂ = 0.02% CTC (w/v), T₃ = 0.2% PPB (w/v); T₄ = 0.4% PPB (w/v); T₅ = 0.6% PPB (w/v); T₆ = 0.8% PPB (w/v).
CTC Chlortetracycline.

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