UJI DAYA HAMBAT SERBUK DAUN KAYU MANIS (Cinnamomum burmanii) TERHADAP BAKTERI Streptococcus agalactiae

Abstract

Streptococcus agalactiaeis a bacterium that causes Streptococcosis in tilapia (Oreochromis
niloticus). Antibioticis being used efforts to control the disease. Using antibiotics constantly will
adversely affect the aquatic environment, bacterial resistance and presence of residues in fish
consumption. Another alternative is to use phytopharmaca materials that are natural and
environmentally friendly. One of the phytopharmaca materials that can be used is cinnamon
(Cinnamomum burmanii) which contains active ingredients such as Saponin, Alkanoid, Tanin,
Flavanoid, Sinamaldehid. The purpose of this study was to investigates the effectiveness and the
best dose of cinnamon leaves (C. burmanii) as an antibacterial agent for the prevention of S.
agalactiaeinfection. This research was experimental desion was group randomized design (GRD)
3 treatments and 3replicationswere used treatments that is A (concentration 0,25%), B
(concentration 0,5%), C (concentration 1%), K (control). Test this study by calculating the
number of colonies grown on agar medium. The result showed that B treatment (0.5%
concentration) can inhibit S. agalactiae bacteria growth with marked growth of bacteria on TSA
(Trypticase soyaagar) medium.