Effects of Clostridium butyricum on antioxidant properties, meat quality and fatty acid composition of broiler birds

Table 3 Effect of C. butyricum on serum biochemical parameters of broilers

Item	Control	CB1	CB2	CB3	Antibiotic	Pooled SE	P-value
21 days^a
Total cholesterol (mM)	3.78a	3.51abc	3.25c	3.42bc	3.65ab	0.1	0.0111
Triglyceride (mM)	0.74	0.72	0.75	0.68	0.67	0.10	0.0111
High-density lipoprotein cholesterol (mM)	2.35a	2.28ab	2.05c	2.10bc	2.23abc	0.07	0.0233
Low-density lipoprotein cholesterol (mM)	1.27	1.24	1.23	1.20	1.27	0.05	0.8976
42 days^a
Total cholesterol (mM)	3.37a	3.05b	2.96b	2.90b	3.09ab	0.1	0.0287
Triglyceride (mM)	0.41	0.37	0.30	0.32	0.36	0.03	0.1437
High-density lipoprotein cholesterol (mM)	2.06	1.93	1.81	1.88	2.02	0.07	0.1216
Low-density lipoprotein cholesterol (mM)	1.06	1.01	0.98	1.04	1.05	0.06	0.8519

Means with different letters within the same row differ (P < 0.05).
Control = basal diet; CB1 = the basal diet supplemented with 2.5 × 10⁸ cfu of C. butyricum/kg; CB2 = the basal diet supplemented with 5 × 10⁸ cfu of C. butyricum/kg; CB3 = the basal diet supplemented with 1 × 10⁹ cfu of C. butyricum/kg; Antibiotic = the basal diet supplemented with 150 mg of aureomycin/kg.
^aEach value represents the mean of 8 cages with one chick per cage (n = 8 per treatment).

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