PROMOTION OF INTENSIVE AQUACULTURE THROUGH BIO-FLOC
TECHNOLOGY” FOR THE FY 2023-24(40-60% Government assistance)
Fish and brackish water shrimp farming can be a great way to boost productivity and generate high income in a limited area. One technique that can help achieve this is bio-floc technology. Bio-flocs are basically micro-balls made up of unused feed, shrimp/fish waste, bacteria, and other microbes suspended in the water tank. By adding probiotic bacteria to the tank, these microbes settle on the bio-floc surface and start breaking down the nitrogenous waste from organic particles, using carbon and oxygen. This process not only helps recycle nutrients but also maintains water quality in the tanks.
The consumption of bio-flocs by shrimp and fish has shown many benefits, including improved growth rate and feed conversion efficiency. The principle behind bio-floc technology is to create a nitrogen cycle by maintaining a higher C:N ratio. This is achieved by stimulating the growth of heterotrophic microbes, which assimilate the nitrogenous waste and provide it as a feed for the cultured species.
Benefits of Bio-Floc Technology:
- This system is eco-friendly and helps reduce the negative impact on the environment by recycling organic waste.
- It improves the efficiency of water and land use.
iii. It can be implemented in urban and peri-urban areas.
- It is a system with limited or zero water exchange, which prevents water pollution and the spread of pathogens outside the system.
- It supports higher productivity of fish and shrimp while reducing the amount of feed used, thus increasing the profit margin for farmers.
Target Group and area of operation:
- Interested farmers with available land for installation of the unit.
- Must be a resident of Odisha with a valid Aadhar card.
iii. Must have a bank account in their name in the state of Odisha.
- Must have an Aadhar-linked mobile number for registration in the Go-sugam portal.
- Beneficiaries who have already received assistance for less than 6 tanks (90 cubic meters) under any other schemes.
- Farmers, private entrepreneurs, and unemployed youth are eligible for assistance under this scheme.
vii. Fish farmers with grow-out tanks, nursery and seed tanks, fish and shrimp hatcheries can also be covered under this scheme.
viii. Priority will be given to unemployed educated youth, as Bio-Floc farming can provide employment opportunities.
Eligibility and Selection of Beneficiaries:
Farmers who are interested in setting up grow-out tanks, nursery and seed tanks, fish and shrimp hatchery operators, private entrepreneurs, and unemployed youth are all eligible to receive assistance under this scheme. However, priority will be given to unemployed educated youth since Bio-floc farming involves advanced technology. The beneficiaries will need to undergo specialized training on Bio-floc systems before they can operate the unit.
- The eligible brackish water shrimp farms, nursery and seed tanks, and hatchery beneficiaries must have the necessary license from the Coastal Aquaculture Authority.
- The support provided will be in the form of back-ended assistance for the installation of a Bio-floc system inside a shed with brick masonry tanks, water supply, drain and aeration units. Additionally, input assistance will be given for the culture in the tank.
iii. The assistance will be available to the above categories of beneficiaries with a minimum of 2 tanks (30 cubic meters) and a maximum of 6 tanks (90 cubic meters).
- If a beneficiary has previously received a subsidy for the installation of a Bio-floc unit under different schemes of the Government of India and State Government, for less than 6 tanks, they will still be eligible to receive further subsidy under this scheme. However, in such cases, the subsidy will be limited to a maximum of 6 tanks, which will include the installation of the tanks from earlier.
- When availing the subsidy, the beneficiary family will be considered instead of individual members of the family. One beneficiary family should not receive multiple benefits under one particular scheme. If any member of a family has received a subsidy during the last three years, the family will not be eligible for subsidy under the same scheme.
- The concept of family members does not apply to WSHG members covered under the WSHG-biofloc scheme. This will not prevent them from having an individual unit beyond biofloc for WSHG.
Unit Cost and pattern of Assistance:
Models | No of tanks |
Unit cost Capital + Input (In Rs Lakh) |
Subsidy pattern for General Category (40%) In Rs. Lakhs |
Subsidy pattern for SC, ST, Women, PWD/Transgender Category (60%) In Rs. Lakhs |
Type-1 | 2 | 2.00 | 0.80 | 1.20 |
Type-2 | 4 | 4.00 | 1.60 | 2.40 |
Type-3 | 6 | 6.00 | 2.40 | 3.60
n |
Details of Bio-floc Model:
Unit Cost and Pattern of Assistance (Brick Masonry
Bio-floc tank of 30 cubic meter capacity (Brick Masonry)
Sl. No. | Items | Unit | Unit Cost (Rs.) |
Subsidy per unit @ 40% of total cost for
Gen (Rs.) |
Subsidy per unit @ 60% of total cost for SC/ST/Women/ PWD/ Transgender (Rs.) |
A | Capital Cost | ||||
1 | Biofloc tank: brick masonry tanks with frames, solid base, drain pipe and fish net covering (4 m dia X 1.3 m depth tank = 15000 L capacity) for two tanks or one tank with 30 Cubic meter capacity |
2 | 90000 | 36000 | 54,000 |
2 | Wooden/ Bamboo shed including installation costs (covered with shade net) Floor area: 50m2 (10 m length x 5 m width)Height: 3 m |
1 | 10000 | 4000 | 6000 |
3 | Electric water pump (0.5 HP) |
1 | 4000 | 1600 | 2400 |
4 | Ring Blower / High pressure air pump (100-120 W,single phase AG) alternatively one blower will run 24×7/ |
2 | 20000 | 8000 | 12000 |
5 | Electronic weighing balance |
1 | 1000 | 400 | 600 |
6 | UPS unit with Inverter (1100 VA) and battery (150Ah) or Portable Genset (1 Kilo Watt)/or any other back up system |
1 | 25000 | 10000
1) |
15000 |
A | Total Capital Cost | 150000 | 60000 | 90000 | |
B | Operational Cost per crop |
||||
1 | Water Management (water pumping, probiotics, aeration etc) |
Lumpsum | 10000 | 4000 | 6000 |
2 | Fish fingerling(25gm) including packing and transportation (Tilapia/ Pangasius/catfish/Amur carp/ Scampi/shrimp/barb etc.) or Cost of Spawn/ Fry for seed rearing within the financial ceiling of cost of stocking material |
1600nos@ Rs.5.00 |
8000 | 3200 | 4800 |
3 | Formulated feed (24- 30% crude protein & 3% fat)
Miscellaneous |
800kg@ Rs.36/kgLumpsum |
28800 3200 |
11520 1280 | 17280 1920 |
B | Operational Cost Total | 50000 | 20000 | 30000 | |
C | GRANDTOTAL(A+B) | 200000 | 80000 | 120000 |
Under this model, if the beneficiary desires he/ she may construct two tanks or one tank with minimum 6O cubic meter tank capacity.