The effect of Antibiofin® on lactic acid bacteria (LAB) population and the Lactobacillus numbers of digestigve system in broiler chickens

Studies indicate that administration of medicinal plant may have beneficial effects on gastrointestinal microflora and improvement of feed conversion ratio in broilers. In order to study the effect of Antibiofin® on lactic acid bacteria (LAB) population and the Lactobacillus numbers in intestine and crop of broiler chickens, a total of 200 day-old broiler chicks, Ross strain, were purchased and 20 chicks randomly were bled for determination of maternal antibody and remaining chicks divided into 3 equal groups. Each group divided into 3 subgroup of 20 chicks. Chickens of groups 1 and 2 received 0.1% and 0.2% of Antibiofin® respectively, in drinking water throughout the period of experiment. Chickens of group 3 as control group did not receive Antibiofin®. For determination of Lactobacillus and lactic acid bacteria counts, at the end of the period, three birds of each subgroup (9 birds of each treatment) were chosen randomly. 1 gram of the crop and ileo-cecum content were taken and cultured on MRS, TSA and Acetate Agar for determination of lactic acid bacteria counts, total counts and Lactobacillus distinction, respectively.The results of this study showed that the total count of intestine in which group that received 0.2% of Antibiofin® was significantly more than control group, but the total count of crop did not have any significan difference among all groups. Receiving Antibiofin® could increase lactic acid bacteria and lactobacil counts of intestine compared to control group. r Adding 0.1% and 0.2% of Antibiofin® to drinking water could increase lactic acid bacteria of intestine compared to crop. So it could be concluded that Antibiofin® had beneficial effect on microflora population in intestine more than crop