Shrimp Farm

1. Shrimp Farming
Place : Kattur
Date : 26.02-28.03.2018
S.Tamil kaviya
BFP 14016

2. Introduction
• Shrimp Farming is one of the most important part in
aquaculture.
• Shrimp farming in india till 2009 synonyms with the
monoculture of Tiger prawn (Peneaus monodon).
• In 1995 tiger prawn was affected by WSSV, the
development of shrimp farming has been stagnant.
• So people have shifted to the culture of white leg
shrimp P.vannamei because of SPF and SPR
broodstock.

3. Biology of P. vannamei
It is native of pacific coast of Mexico and
central and south America. It is an omnivorous
scavenger. It grows upto 20g within 100-200 days
depending on stocking density.
Advatages of P.vannamei :
Fast growth rate
Tolerate salinity level of 0 to 50 ppt
Require low protein feed ( 20-35%)
High survival rate
Have a very good market value

4. Water quality parameters :
Dissolve oxygen – 5ppm and above
Temperature – 30 – 34 degree
pH - 7 to 9
Ammonia – N - < 0.01 ppm
nitrite – N - < 0.01 ppm
Site selection :
Generally clay loam soil are preferred.
Shrimp farm should maintain 100 m distance
from the drinking water source and 50-100m shall be
away from agriculture land.
Availability of road, electricity.

5. pond preparation:
The water from the pond is drained completely and
allowed to dry for about 1 week to release the abnoxious
gases.
It should be dried untill the bottom cracks. Then the
bottom soils are removed and ploughing should be done.
Then liming should be done to correct the pH of
soil. After that fill the water in the pond upto 1m.
Floc or Juice preparation:
After filing the pond with water juice mixture of
rice bran 10 kg ,GNOC 5kg, molasses 5kg and yeast 250g
is added in the pond water for developed the plankton
production. Then plankton was developed after 3-4 days.
From that pond water is transferred to the other pond.

6. Stocking of pond:
Stocking density (60/m2)1 lakh/acre. Size of
the PL is 0.01g. PL 8 and PL 9 SPF shrimp seeds are
stocking in the pond. stocking were done in late evening
hrs .Before stocking O2 marine tablets is added to
release the oxygen for 6hrs.Because use of aerators can
be affected the seeds. Initially 2 aerators per pond is
used after animal grows aerator number is increased.

8. Feed management:
Feed management is more important in shrimp culture.
Here the farmer use commercial feed “ Mannamei” feed
from avanthi feed ltd.
Aerators should be stopped before 30 mins of feeding.
First blind feed is given for 1 month after next days
starter 1,2,3 feed is given for shrimps. 1kg feed is given
for 1 lakh seeds.
Feed is mixture with water and spread in the all over
the pond. Small amount of feed is kept in the trays. The
tray is checked after 2 hrs. Two trays are kept in one
pond.
The amount of feed is reduced in moulting period and
rainy season.

12. Feeding Time:
Feeding is given 4 times per day 6 am,10am,2pm,6pm.
Sampling :
Weekly sampling should be done on every Tuesday. 1st
sampling done at 30th day and subsequently weekly
sampling were done. Then feed is given according to the
body weight. This farmer get 20g size at 90 days.
Growth & Survival rate :
The average shrimp body growth rate are 20 g in 90
days of culture with survival rate 70-90%.

13. Nursery culture:
At the end of first culture (70days) new seeds are
stocked in nursery pond and reared for 20-23 days.
These seeds are immediately stocked after
harvesting the first harvesting.
This technique is used to reduce the DOC of
shrimp culture. This way leads to high in come and
production .
Water treatment :
After harvesting the soil sample is tested in lab
then treated the water. Water is drained once in a
year. This farmer is recycled the water and reused
that water

14. Harvesting :
Harvest done by the drag net. The net is dragged
from one side to another side for 3-4 times.
Harvesting is done at 50 counts ( 20g ).
Economics of shrimp farm:
Cost of producing 1kg shrimp (90 days)-Rs.250
Selling price of 1kg shrimp – Rs.400
Net profit - Rs. 150
After 90 days of culture, Rs. 1.5 lakh/ton of profit
is obtained.

15. Solar Tent Dryer
Pulicat
Date: 02.05.2018