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Accumulation of uneaten feed, excreta, dead plankton create a
sludge on the pond bottom and turbid water above. Digestion of
sludge by indigenous microorganisms is slow and takes dissolve
oxygen away from the crop. In addition, there is a build up of
ammonia, nitrites and other toxic inhibitory products.
Therefore, to improve the aquatic environment there must be a
reduction in accumulation of these substances. It is well known
fact that chemical and physical methods are costly and are
temporarily beneficial. The reduction of sludge is best possible
by BIO-AUGMENTATION of the existing microorganisms through
regular addition of biologically active seed cultures such as
PROBAC -BC.
COMPOSITION & MODE OF ACTION :
PROBAC-BC contains special mixture of non pathogenic
microbial cultures viz., Bacillus subtilis,
B.licheniformes, B.polymyxa, B.megaterium,
B.pumilus, B.circulans, B.firmus and two
strains of cellulolytic fungi of genus Aspergillus (A.oryzae
and A.niger) which are adapted to produce large amounts
of waste degrading enzymes like amylases, proteases, lipases and
cellulases. It contains bacteria that oxidize ammonia to form
nitrites and nitrates. The cultures of Probac-BC enhance
the natural nitrification cycle. Simultaneous with
nitrification, de-nitrification occurs, which converts harmful
nitrates and ammonia into harmless nitrogen gas, nitrous oxide.
This process is carried out by the facultative denitrifying
bacteria in Probac-BC.
ADVANTAGES :
FReduces
BOD and COD.
FWorks
efficiently in wide range of PH (3 - 9.5) and Salinity ( 0 -
50).
FReduces
sludge and maintains Water quality.
FRegulates
PH and stabilizes bloom.
FNo
tedious process such as brewing and aeration required.
FHighly
concentrated and produces huge amounts of digestive
enzymes.
FWorks
in aerobic and anaerobic condition.
DOSAGE IN GMS/HECTARE :
|
Days/Stocking Density |
3-5 |
8-10 |
10-20 |
20-30 |
30-40 |
|
7 days
pre-stocking |
100 |
150 |
200 |
240 |
300 |
|
7 days
post-stocking |
75 |
125 |
200 |
240 |
500 |
|
21st
day |
150 |
400 |
600 |
640 |
1150 |
|
35th
day |
250 |
550 |
900 |
960 |
1300 |
|
50th day |
300 |
650 |
1050 |
1120 |
1630 |
|
65th day |
350 |
750 |
1200 |
1500 |
1920 |
|
85th day |
450 |
1100 |
1750 |
2000 |
2500 |
|
100th day |
500 |
1150 |
1900 |
2500 |
3000 |
|
115th day |
600 |
1350 |
2200 |
3300 |
4000 |
|
130th day |
450 |
1100 |
1800 |
2000 |
2700 |
|
Total |
3.25 Kgs |
7.35 Kgs |
11.8 Kgs |
14.5 Kgs |
19 Kgs |
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