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Background: This research investigates the implication effect of consortium microbiota probiotic Lactobacillus bulgaricus, Streptococcus thermophiles, Lactobacillus acidophilus, and Bifidobacterium sp. in yogurt on the zone of inhibition against Salmonella typhimurium in yogurt, also the activities of the enzyme. Methods: The experiment used a Completely Randomized Design (CRD) with four treatments each with two replications. The data was statistically analyzed using Analysis of Variance, which was followed by Duncan's Multiple Range Test. Result: Results indicated that the probiotic microbiota produced higher enzyme activities and showed the inhibition zone better than milk, even though there is no significant effect compared to antibiotic control.

The probiotic powder can improve the value of hematology, reduce blood fat and increase the production of late-phase laying hens. The study was conducted to assess the impact of probiotic powder on the different physiological activities system of late-phase laying hens measured with hematological values and serum biochemistry. The research was carried out from March until April, 2022 at the Layer Farm Sukarapi Village, Universitas Padjadjaran, Indonesia. A total of 40 laying hens 90 weeks were randomly allocated to four treatments and five replications, with experimental Completely Randomized Design (CRD). The treatments were, T0: probiotic powder free-control diet. T1: ration and 2 % powder probiotic, T2: ration and 3% powder probiotic, T3: ration and 4% powder probiotic. Statistically, there was no significant differences (P>0.05) in hemoglobin, hematocrit, erythrocyte, leukocyte, cholesterol, and triglyceride blood levels. Meanwhile, our data showed statistically significant difference in glucose blood levels. However, the administration of powder probiotics of 3% and 4 % has improved the hemoglobin, hematocrit, erythrocyte, and leukocyte levels, and decreased cholesterol, and triglyceride blood levels.

Penelitian ini bertujuan mengetahui pengaruh pemberian probiotik kering terhadap performa pertumbuhan meliputi konsumsi ransum, pertambahan bobot badan, dan konversi ransum. Penelitian dilaksanakan pada 6 Agustus hingga 6 September 2019 di kandang Test Farm, Fakultas Peternakan, Universitas Padjadjaran. Metode penelitian menggunakan Rancangan Acak Lengkap dengan lima perlakuan dan empat kali ulangan.  Perlakuan yang diberikan; P0: ransum basal, P1: ransum basal + probiotik kering A (susu sapi fermentasi 100%), P2: ransum basal + probiotik kering B (susu sapi fermentasi 75% + susu kacang hijau fermentasi 25%), P3: ransum basal + probiotik kering  C (susu sapi fermentasi 75% + susu kedelai fermentasi 25%), dan P4: ransum basal + probiotik kering D (susu sapi fermentasi 50% + susu kacang hijau fermentasi 25% + susu kedelai fermentasi 25%). Setiap perlakuan diberikan sebanyak 2% dari total ransum. Probiotik kering mengandung empat bakteri asam laktat diantaranya Lactobacillus bulgaricus, Lactobacillus acidophilus, Streptococcus thermophilus, dan Bifidobacterium bifidum. Hasil analisis ragam menunjukkan konsumsi ransum dan konversi ransum tidak berbeda nyata (P>0,05) namun adanya perbaikan, sedangkan pertambahan bobot badan menunjukkan perbedaan yang nyata (P<0,05) meningkatkan, artinya penambahan probiotik kering mampu meningkatkan kecernaan dan efesiensi pencernaan. Kesimpulannya penggunaan probiotik kering mampu meningkatkan performa pertumbuhan.