Asian Journal of Research in Animal and Veterinary Sciences

Aims: The study aims to examine the effect of adding encapsulated dahlia tuber extract as a prebiotic and Bacillus subtilis as a probiotic to the ration on the blood lipid profile and final body weight of broilers.

Place and Duration of Study: The study was conducted from October 2023 to December 2023, at the Laboratory of Nutrition and Feed Science, Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang-Indonesia.

Methodology: 200 unsexed Ross strain broilers aged 8 days with an average body weight of 194.53 ± 3.46 g were used. The treatment feed was administered at the age of 8-35 days, containing encapsulated dahlia tuber extract as a prebiotic and Bacillus subtilis as a probiotic (EDTEBs). The study used a completely randomized design (CRD) with 4 treatments and 5 replications, each consisting of 10 broilers. The treatment given was T0:basal ration, T1: basal ration + 0.1% EDTEBs, T2: basal ration + 0.2% EDTEBs, T3: basal ration + 0.3% EDTEBs. The parameters measured were blood cholesterol, triglyceride, high-density lipoprotein (HDL), low-density lipoprotein (LDL) levels, and final body weight. Data were analyzed using the JASP program.

Results: The results showed that the addition of dahlia tuber extract encapsulation and Bacillus subtilis encapsulation had a significant effect on cholesterol levels (P < .001), triglycerides (P < .001), HDL (P = .002), LDL (P = .001), and final body weight (P < .001) in broilers. The addition of EDTEBs at a concentration of 0.1% yielded optimal results in reducing cholesterol, triglycerides, and LDL levels, while also increasing HDL levels and final body weight in broilers.

Conclusion: The addition of encapsulating dahlia tuber extract and Bacillus subtilis at a level of 0.1% improved the blood lipid profile of broilers by reducing cholesterol, triglyceride, and LDL levels, while increasing HDL levels and final body weight.