Uji Daya Hambat Isolat Bakteri Asam Laktat Usus Itik (Anas Domestica) Pada Bakteri Gram Positif Dan Pola Pertumbuhan Isolat Bakteri Usus Itik Pada Media Mrs Broth
Abstract: At this time unknown bacterial isolates inhibit the ability of
the isolated intestine of ducks against Gram-positive bacteria such as Bacillus
subtilis and Staphylococcus aureus. In addition, the growth pattern is also
unknown bacterial isolates grew on the medium MRS Broth. This study aims to
determine the inhibition of intestinal bacterial isolates antibacterial extract
of duck against Gram-positive bacteria and determine the pattern of growth of
intestinal bacteria duck isolates were selected on MRS Broth media.
Determination of the inhibition assay duck intestine bacterial isolates using
the wells, while for the determination of growth patterns of duck intestine
bacterial isolates by counting directly the number of bacterial cells by
microscopy. The results showed that the bacterial isolates capable of
inhibiting the growth of colon duck Gram-positive bacteria. Isolates that
produce the greatest diameter of the results of this research that isolates B4
and B9 at 20.2 mm and 17.9 mm long production time 4 days. Growth of intestinal
bacteria isolates duck B4 shows the phase lag for 2 hours and logarithmic phase
for 17 hours, while isobat B9 shows the phase lag for 3 hours and logarithmic
phase for 10 hours.
Keywords: Intestinal Bacterial Isolates Ducks, Inhibition Power Test,
Growth Patterns, Staphylococcus aureus, and Bacillus subtilis
Penulis: Rudy Sutrisna, Nugroho Ekowati, Diah Rahmawati
Kode Jurnal: jppertaniandd130063
