Inland Low Salinity LDF BOI Sindh Presentation

7/28/2019 Inland Low Salinity LDF BOI Sindh Presentation

http://slidepdf.com/reader/full/inland-low-salinity-ldf-boi-sindh-presentation 1/19

Khalid A. Memon

CEO, Aquaculture Technologies

www.aquatechpk.com

Aquaculture ConsultantsFreshwater, Brackishwater & Marine Farming



• Costal Shrimp Culture

•

Coastal Land Based & Cage Finfish Culture

• Inland Low Salinity Shrimp & Finfish Culture

Sustainable Marine & Brackishwater

Aquaculture

Shrimp & Finfish Farming



Marine Shrimp & Finfish Farming

Conventional Marine Shrimp Culture



Marine Shrimp & Finfish Farming

Marine Finfish Cage Culture



Biofloc Technology in Shrimp Culture

• Open Lined / Cemented Ponds

• Indoor Tanks / Covered Ponds

Inland Low Salinity Groundwater Aquaculture

• Open Ponds

• Indoor Tanks

Old Ideas

Proven Developments in Aquaculture



Cultured & Experimental Species

• Pacific White Shrimp - Litopenaeus vannamei

• Gilthead sea bream - Sparus aurata

• Florida pompano (Trachinotus carolinus)

• Nile Tilapia (Oreochromis niloticus)

• Red Drum (Sciaenops ocellatus)

• Cobia (Rachycentron canadum)

• Rainbow trout (Oncorhynchus mykiss)

• Black Tiger Shrimp and Banana (monodon & merguiensis)



Biofloc Technology Simplified

Conventional Intensified Culture Systems:

• Intensive farming requires more supplementary protein feed

resulting in environmental pollution

• This pollution is caused by dead algae, excessive uneaten feeds, fish

and shrimp excreta and other organic matter

• Deteriorates water quality• Increases risk of disease outbreaks

• Contributes to nitrogen pollution in the culture system released in

the form of ammonia and nitrite

•

Ammonia and nitrite are toxic to cultured animals• High levels of ammonia effect growth and moulting in shellfish

• High oxygen consumption results in fish shrimp mortalities

• Intensive farming requires frequent water exchanges



Biofloc Technology Simplified

Biofloc Technology Systems (BFT):

• BFT helps in solving culture water and feed problems.

• When carbon is added, nitrogen compounds combine with it to

produce flocs of protein molecules.

• These molecules form a floating mass called bioflocs which are

dominated by bacteria.• The production of microbial biomass, are used by the culture

species as additional high protein source.

• The bacteria take up ammonium from the water to produce

microbial protein.

• BFT removes ammonia-nitrogen from the water.

• BFT creates additional feed for the shrimp thus reducing feed

inputs but increasing production due to higher rate of stocking.



Biofloc Technology Basics

1. SPF Post larvae2. HDPE lined ponds

3. Sludge removal (requires less water)

4. Control inlet & discharge gates (no leakages)

5. Clean pond & equipment

6. Screen & treat water

7. Correct aeration system & Paddle wheel position in ponds

8. High aeration –28 to 32 HP/ha PWAs

9. Grain (pellet)

10. Molasses11. Crab Fence & Bird scare lines

12. Control workers , visitors & their movement



Benefits of Biofloc Culture System

•Limited or zero water exchange

• Higher bio-security

• Environmentally friendly system

• Reduction of nutrient rich effluent discharge

• Protein reuse (Higher efficiency up to 45%)

• Cost-effective ( Grain based pellet feeds)

•

Full control of toxic nitrogen compound such as ammoniaand nitrites

• High Production 6 – 12 MT /acre/crop



Thai Tilapia BFT



Inland Low Salinity Groundwater Aquaculture

Advantages of inland saline aquaculture include:

• Use of unproductive land without sweet water source

• Use of high volume unexploited saline groundwater that

is presently considered a waste stream

• Potential for commercial production of a highlymarketable product

• Faster fish growth due to constant elevated water

temperatures

• Improved feed management and food conversionefficiencies

• Biosecure water supply and ability to manage

environmental impacts (such as water and nutrients)



Desert Shrimp Farm Arizona USA



COMPARISON OF WATER CHEMISTRY FROM ARIZONA SHRIMP FARM VS. HUB AREA

COMPONENT

(mg/l)

SEA WATER

(www.)

DILUTE SEA

WATER (Calc.)Arizona Shrimp

Co. (Lab & Boyd)

HUB AREA

Baluchistan

Salinity (ppt) 35.0 4.5 7.4 6.9

pH 8.2 ND 7.6 8.0

Alkalinity 125.0 ND 220.0 152.0

Cl (Chloride) 19,400.0 2,494.3 3,223.0 2,836.8

Na (Sodium) 10,500.0 1,350.0 2,595.0 1,561.7

SO4 (Sulphate) 2,740.0 352.3 2,313.0 1,485.1

Mg (Magnesium) 1,272.0 163.5 222.0 291.8

Ca (Calcium) 400.0 51.4 497.0 440

K (Potassium) 380.0 48.9 15.2 3.1

K/Cl Factor 0.0196 0.0196 0.0047 0.001

For K/Cl Factor of 0.0100,

K should beNA NA 32.2 28.4

Grams of KCl to be added

per 1,000 liters of new

water

None None 34.1 50.8

L. vannamei Shrimp Culture Probability at HUB Baluchistan



1. Feed:Feed cost constitutes about 50-60% of the total farm cost.

Availability of locally produced feed can be overcome by producing

floating and sinking feeds on site. Several low cost options are

now available. Extruder equipment costing hundred thousand

dollars a few years ago, is now available at a fraction of the cost.

Limitations Overcome




2. Seed: Farms around the world are switching over to culturing

the Pacific White Shrimp L vannamei and trials conducted inSindh have been successful and acceptable by local processors.

• Slow growth syndrome – emerging problem in Penaeus monodon

•

Availability of vannamei shrimp Specific Pathogen Free SPF & CPF• High tolerance to salinity levels 1 – 40 ppt

• Stocking rates of up to 150 m²

• Grows as fast as tiger shrimp

• Vannamei is easier to breed and has excellent qualities

• Better survival rates as against monodon and indicus

• Market acceptability is very good.




P. Monodon vs. L. vannamei



Limitations

3. Government Assistance

• Governmental and fisheries agencies to allocate suitable

land for shrimp farming.

• Fisheries Department to provide shrimp seed including

vannamei

• Governmental and fisheries agencies should offer incentives

to farmers and potential investors

•Lease of land at reasonable rates under a Land Grant Policy

• Soft Loans, income and profit tax rebates

• Assistance with collective infrastructure such as roads,

electricity, water channels, bunds and drainage.



THANK YOU

Khalid A. Memon

CEO, Aquaculture Technologies

www.aquatechpk.com

Inland Low Salinity LDF BOI Sindh Presentation

Documents

Transcript of Inland Low Salinity LDF BOI Sindh Presentation