Comparison of the effect of domestic and imported probiotics on growthperformance, blood lipid parameters and small intestine morphology ofbroilers
In this research the effect of using domestic (Multibehcil) and imported (Bioplus B2) probiotic supplements and Avilamycin antibiotics wereinvestigated on performance, parameters of blood lipid and small intestine morphology by a sample of 360 male Ross-308 broilers aging 11 to 42days-old in a completely randomized design with 6 treatments, 4 replications and 15 chickens per each replicate. Experimental treatments included 1)without additive (control), 2) diets containing 0.1% of commercial bioplus B2 probiotic, 3) diets containing 0.01% of avilamycin antibiotic andtreatments 4) to 6) diets containing 0.05%, 1% and 0.15% of Multibehcil, respectively. The results showed that body weight and feed conversion ratiowas improved by using bioplus B2 probiotic and antibiotic (P < 0.05). Body weight and feed conversion ratio in birds receiving 0.1% and 0.15% ofMultibehcil were not significantly different from birds receiving bioplus probiotic. Feed intake was not affected by the experimental treatments.Humoral immune response and intestinal morphological parameters in birds receiving 0.15% of Multibehcil was not significantly different from thecontrol group and it was statistically equal to the groups receiving bioplus probiotics and antibiotics. The LDL level of blood showed a significantdecrease in Bioplus B2, antibiotic and 0.15% of Multibehcil treatments (P < 0.05). In general, the results indicated that using of Multibehcil at thelevel of 0.15 percent can be a suitable alternative for both Bioplus B2 and Avilamycin during grower and finisher period in broilers.
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