Effects on the Productivity and Blood Characteristics of Broilers Fed with Addition of Dried Bacillus subtilis Culture
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This study was conducted to examine the effect of a diet supplemented with dried Bacillus subtilis culture on broilers' productivityand blood characteristics. Broiler feeding experiments were conducted twice. The diet fed to the control group was supplemented with0.2% Palm MateⓇ commercially available probiotics (B. subtilis), and the diet fed to the experimental group was supplemented withThekerⓇ 0.05% dried B. subtilis culture (DBC) in experiment 1, and 0.1% DBC in experiment 2. Treatment was administered for fourweeks in both groups. A higher average daily gain was observed in the group treated with 0.05% DBC in experiment 1 comparedwith the control group, which was significantly higher in the group that received 0.1% DBC in experiment 2 compared with the controlgroup. A higher production index was observed in the groups that received treatment than in the control group and was higher in the0.1% DBC group than in the 0.05% DBC group. Significantly lower serum triglyceride (TG) was observed with increased DBC content. Although the findings showed no statistical significance, lower total cholesterol (T-C) was observed in the treated group than in thecontrol group. HDL-cholesterol (HDL-C) content showed a significant increase in the DBC-treated groups. A significantly opposite outcomewas observed for LDL-cholesterol (LDL-C) content. These findings demonstrated that the atherogenic index (AI) and cardiac risk factor(CRF) decreased in the DBC-treated groups. Significantly lower serum levels of glutamic-oxaloacetic transaminase (GOT: aspartateaminotransferase, AST) and glutamate pyruvic transaminase (GPT: alanine transaminase, ALT) were detected with an increase in DBCcontent in the treated groups compared with the control groups. To summarize the findings described above, adding ThekerⓇ dried B. subtilis culture to broiler feeds positively improved productivity through weight gain of broilers and the production of healthier functionalbroilers through the improvement of blood lipids and liver function. It is expected that the findings of this study will be helpful inthe effort to increase the profitability of broiler chicken farming and promote human health.
Abstract
This study was conducted to examine the effect of a diet supplemented with dried Bacillus subtilis culture on broilers' productivityand blood characteristics. Broiler feeding experiments were conducted twice. The diet fed to the control group was supplemented with0.2% Palm MateⓇ commercially available probiotics (B. subtilis), and the diet fed to the experimental group was supplemented withThekerⓇ 0.05% dried B. subtilis culture (DBC) in experiment 1, and 0.1% DBC in experiment 2. Treatment was administered for fourweeks in both groups. A higher average daily gain was observed in the group treated with 0.05% DBC in experiment 1 comparedwith the control group, which was significantly higher in the group that received 0.1% DBC in experiment 2 compared with the controlgroup. A higher production index was observed in the groups that received treatment than in the control group and was higher in the0.1% DBC group than in the 0.05% DBC group. Significantly lower serum triglyceride (TG) was observed with increased DBC content. Although the findings showed no statistical significance, lower total cholesterol (T-C) was observed in the treated group than in thecontrol group. HDL-cholesterol (HDL-C) content showed a significant increase in the DBC-treated groups. A significantly opposite outcomewas observed for LDL-cholesterol (LDL-C) content. These findings demonstrated that the atherogenic index (AI) and cardiac risk factor(CRF) decreased in the DBC-treated groups. Significantly lower serum levels of glutamic-oxaloacetic transaminase (GOT: aspartateaminotransferase, AST) and glutamate pyruvic transaminase (GPT: alanine transaminase, ALT) were detected with an increase in DBCcontent in the treated groups compared with the control groups. To summarize the findings described above, adding ThekerⓇ dried B. subtilis culture to broiler feeds positively improved productivity through weight gain of broilers and the production of healthier functionalbroilers through the improvement of blood lipids and liver function. It is expected that the findings of this study will be helpful inthe effort to increase the profitability of broiler chicken farming and promote human health.
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