22/07/2022

Biofloc Technology.

Introduction:

Bio floc technology is an alternative fish farming system where recycling and reuse of waste nutrients as fish is employed. The principle approach of BFT is to culture suitable microorganism along with aquatic species to produce a sustainable system.  

Before starting the project we cleaned the tank and surrounding area of the tank then filled the water with tank.

23/07/2022

Procedure:

After filling the tank with water, we measured its diameter, radius and height of the water in that tank and then find the volume of tank.

Calculation:

* volume of water in circular tank.

  • Measurement took by measuring tape
  • We take average value of water due to the slope was not same.

H1=0.56m

H2=0.62m

H3=0.675m

H4=0.64m

H5=0.65m

Average height:

             H1+ H2+H3+H4+H5/5

              0.56+0.62+0.675+0.64+0.65/5

                        3.145/5 = 0.629m

H= 0.629, D=3.8m, R=1.9m

By using formula of volume of circle

V= πr2h

= 3.14×1.9×1.9×0.629

= 7m3

V= 7×1000= 7000L (converted in liter)

We had calculated jaggary for 1000 lit for bio floc. We took 1 kg jaggary for 1000 lit water. So total volume of water was 1000 L and 7kg jaggary is needed.

25/0/2022

Added 7 kg jaggary in 7000lit water and its completely dissolved in water

Also added bubbler to supply oxygen for the survival of fish, added three bubbler in water tank and to check the  working of bubbler is proper or not.

To find the TDS of water by TDS meter.

  the TDS is 176

26/07/2022

we measured weight weight of fishes and calculated the total number of fishes.

calculation:

Total number of fishes= 106

Weight of fishes = 90869kg  

Advantages:

  1. Biofloc is an eco- friendly culture system.
  2. cost effective feed production.
  3. Higher productivity .
  4. Easy harvesting.
  5. zero or limited water replacement.