Antibacterial Activity Moringa oleifera Leaf and Red Ginger Extract as Natural Feed Additive

Natural feed additives such as moringa leaf and red ginger used as an antibacterial is one of the solution in disease prevention and performance improvement in animal husbandry. The purpose of this study is to determine the inhibition zone strength of Moringa leaf and red ginger extracts combinations against Escherichia coli and Staphylococcus aureus bacteria. Complete Randomized Design, Duncan's test and T-test are used to determine the difference between each replication that consisted of 5 treatments and 4 replications consisting of, P0 (positive control, namely cotrimoxazole); P1 ( 40% Moringa leaves + 30% Red ginger); P2 ( 40% Moringa leaf + 35% Red ginger ); P3 ( 40% Moringa leaf + 40% Red ginger ); P4 ( 40% Moringa leaf + 45% Red ginger ). The results indicated that the various combinations of moringa leaf and red ginger extracts concentrations have a significant effect on inhibition zone towards Escherichia coli and Staphylococcus aureus. The highest inhibition zones are in treatment P4 ( 40% Moringa leaves + 45% Red Ginger ) Escherichia coli bacteria 23.50 mm ± 0.11 mm and Staphylococus aureus 23.60 mm ± 0.11 mm. This study concludes that the combined extract of Moringa leaf and Red ginger at a concentration level of 40% Moringa leaf + 45% red ginger has the strongest inhibition towards the growth of Gram- Positive and Gram-Negative bacteria.