Dinamika Populasi Bakteri dalam Air dan Sedimen Tambak pada Pemantapan Budidaya Udang Vaname Ekstensif Plus Melalui Pergiliran Pakan
ABSTRACT: Dynamics of
populations of bacteria isolated from water and sediments oil brachkis water
pond vannamei shrimp (Litopenaeus vannamei) extensive plus the feeding regime.
The research was conducted at the research instalation of the Research
Institute for Coastal Aquaculture (Balitbang BAP), in Marana, Maros Regency.
This research was aimed to study at the population growth of bacteria in the
water and sediment in the brachkis water pond throuh feeding regime. The
tretment was applied with gradual reduction of protein feed for culture
period.Six ponds each sized of 2500 m2 were used in this research with vannamei
juvenile (PL-25) with stocking density 8ind/m2(extensive plusculture). The
treatments were tested in thi sactivity is the rotation period of high protein
feed (38%) to moderate protein (34%), and low rotein (30%), with the
composition of the treatment: A=feeding regime of high protein feed to protein
being at the first-week 1 (low protein); B=feeding regime of high protein feed
to protein being at the third week (medium protein); C=feeding regime of high
protein feed to protein being at the 5th-week (high protein). Each treatment
was arranged in two replications and reared for 75 days.The results obtained
range of bacteria Vibrio sp population in pond water treatment
A(2,59x102-1,99x102) cfu/mL; B(2,55x102-2,23x102) cfu/mL; and C
(4,22x102-0,90x102) cfu/mLwitha total bacteria (TPC) in the water pond A
(3,23x104-3,03x104) cfu/mL; B (3,55x104-1,88x104) cfu/mL; and C
(2,45x104-2,14x102) cfu/mL. Total Vibrio spon sediment pond is
A(3,75x103-1,82x104) cfu/g; B (4,17x103-6,22x104) cfu/g; and C
(2,94x104-1,47x103) cfu/g with a total bacteria (TPC) in the sediment pond is A
(2,59x106-2,62x105) cfu/g; B (2,07x106-3,56x106) cfu/g; and C
(2,76x106-3,09x106) cfu/g for 75 days of culture period. Water quality
parameters showed similar variation in both treatment, except amonia and total
organik matter.
Keywords: Population of bacteria,
feeding regime, cultivationvaname, plusextensive
Penulis: Markus Mangampa
Kode Jurnal: jpperikanandd150772
