UJI DAYA HAMBAT EKSTRAK Chaetoceros calcitransTERHADAP BAKTERI Aeromonas salmonicida

JFMR-Journal of Fisheries and Marine Research

Mr. Maftuch¹  Febby Hadi Setyawan² 

[1] Brawijaya University;Program Studi Budidaya Perairan Fakultas Perikanan dan Ilmu Kelautan, Universitas Brawijaya Malang

关键词: Aeromonas salmonicida;    Chaetoceros calcitrans;    Uji daya hambat;   

DOI  :  10.21776/ub.jfmr.2018.002.01.6

学科分类：农业科学（综合）

来源: University of Brawijaya

【 摘 要 】

The impact of use antibiotic can cause problems on aquaculture such as bacterial resistance and residues for consumer. Therefore, one of alternatives that can be used to inhibit or kill bacteria, one of which is the use of planktonChaetoceros calcitrans . This research aims to know the influence of the grantingC. calcitransextract that can inhibit or kill bacteria and know the best dose for inhibitA. salmonicidabacteria. The experiment method  used randomize completely design consist of four treatment and two control. A treatment (0.3 ppm), B treatment (15.3 ppm), C treatment (30.3 ppm),  D treatment (45.3 ppm), positive control (add chlorampenicol 5ppm) and negative control (without extract). The result of research showed the highest average of clear zone diameter in D treatment 5.37 mm and the lowest average of clear zone diameter in A treatment 2.89 mm, with linear equation y = 3.2067 + 0.0509x and coefficients R 2= 0.9262. The relationship betweenC. calcitransextract in inhibitng gwoth ofA. salmonicidabacteria showed that the average diameter of the clear zone has increase in line with the addition of extracts. Form the research showed that the extract ofC. calcitranswas bacteriostatic (inhibits the growth of bacteria) and best obtained at the treatment dosage of D with a dose of 45.3 ppm and included into the category of middle.

【 授权许可】

CC BY-NC