these slides will give you overview of larval rearing of fishes particularly carps

1. KVAFSU
Larval Rearing:
Heart of Aquaculture
Dr Shivaumar Magada
Professor and Head
Fisheries Research and
Information Centre, Hebbal,
Bangalore, India
shivakumarmagada@gmail.com
+91-99457 83906

2. KVAFSU Acknowledgement
§ Shri Prabhu Chawan, Hon’ble Minister for Animal Husbandry,
GoK and Pro-Chancellor, KVAFSU
§ Shri S Angara, Hon’ble Minster for Fisheries, Ports, Inland
Transport, GoK
§ Dr H D Narayanaswamy, Hon’ble Vice Chancellor, KVAFSU,
Bidar
§ Major Manivannan IAS, Secretary, Dept. of Animal Husbandry
and Fisheries, GoK
§ Dr BV Shivaprakash, Director of Research, KVAFSU, Bidar
§ Dr N A Patil, Director of Extension, KVAFSU, Bidar
§ Shri Ramacharya, Director of Fisheries, DoF, GoK
§ Dr A Senthil Vel, Dean, College of Fisheries, Mangalore
§ Staff of DoF, GoK, CoF and FRIC, Hebbal and Hesaraghatta

3. KVAFSU
Vastness…
Coast line 8,129 km
EEZ 2.02 million km2
Continental Shelf 0.52 million km2
Rivers & Canals 1.97 lakh km
Reservoirs 3.15 mh
Ponds and Tanks 2.35 mh
Oxbow lakes &
derelict waters
1.3 mh
Brackish water 1.2 mh

4. KVAFSU
Breeding is easier

5. KVAFSU
Value the each egg

6. KVAFSU
Success depends on….
§Technical know-how
§Land
§Water
§Skilled manpower
§Fund flow
§Demand for seed
§Consumer preference

7. KVAFSU
Water treatment
1
Slow Sand
Filtration
& water
stagnation
2
Ozonisation
or
Chlorination
with 10-15
ppm; No
aeration for
3 h
3
Applicable only if
Cl is used
Dichlorination
with Sodium
thiosulphate
(0.75 g of Thio
to neutralize 1
ppm of Cl in 1 t
of water)
4
Removal of
heavy
metals
using 10
ppm EDTA
Then pass it through UV and series of
cartridge filter up to 1 micron

8. KVAFSU Water treatment process for shrimp/fish hatcheries
Slow Sand
Filter
Ozone
Treatment EDTA 10 ppm
UV System
(Optional)
Cartridge
Filters up to 1
micron
Hatchery
Sand
Filter
Flow and Heat
regulator
Flow
Regulator
Ozone
generator

9. KVAFSU
Long way to go
§ We have not utilized our resources even by 50%
§ To stock all the waterbodies systematically; we
need more seed
§ Since we are failing at the beginning itself, the
further take off is failed (Sea bass, crab, cobia)
§ Success means-the technology must be
technically, economically, socially, ethically,
environmentally viable and feasible

10. KVAFSU
Facts and Figures
§283 monodon hatcheries in India
§117 L. Vannamei
§More than 500 Carp hatcheries India
§Crab, Sea bass, murrel, clarias, cobia,
pampano, shilago….
§Still long way to go?.........h OW and
Who

11. KVAFSU
Facts..
§ Unless we acknowledge our limitations we can
not derive strategies for solution
§ with 6.5 decades of experience, we are unable to
put 50% of the water bodies under fish culture
§ Then where are heading to?

12. KVAFSU
Key constraints
§ Poor survival
§ Poor quality
§ Inadequate production
§ Inadequate infrastructure
§ Untimely supply
§ Proximity problem
§ Poor technical competency

13. KVAFSU
Key constraints..
§Genetic degradation
§Inbreeding
§No customized feed
§Still following conventional methods in
hatchery systems
§Technical incompetence

14. KVAFSU
Managerial issues
§Feed quality
§Stocking density
§Type of feed
§Preparation of pond
§Disease management
§Water quality management
§Forecast and system management

15. KVAFSU
Understand the GAPE

16. KVAFSU
Lessons from other fields

17. KVAFSU
Live foods

18. KVAFSU
Algae found in polluted waters

19. KVAFSU
Zooplankton

20. KVAFSU
Common Phytoplankton

21. KVAFSU

22. KVAFSU
Indoor Nurseries

23. KVAFSU

24. KVAFSU

25. KVAFSU

26. KVAFSU
Move on to precision farming

27. KVAFSU
Flowthrough systems

28. KVAFSU
Beyond Carps

29. KVAFSU
Use of right diet

30. KVAFSU
Use of right tools

31. KVAFSU
Air blowers, diffusers…

32. KVAFSU
Glass Jar Hatchery

33. KVAFSU
Relative Gut Length

34. KVAFSU
Have you
measured the
larvae and the
yolk size?

35. KVAFSU
Policy issues
§ No targets/No incentives
§ Cost factor
§ No regulations to control the whole system
§ No certification and quarantine
§ No systematic ground data
§ Good sight but poor vision

36. KVAFSU
Farmers issues
§Lack of entrepreneurship
§Compromising with budget
§Misconception of technologies
§Greedy
§Mismanagement

37. KVAFSU
Institutional issues
§Eager to claim success
§Try to market unfinished concept
§Do not acknowledge the weaknesses
§No end to end approach
§Poor team work
§Weak checks and measures

38. KVAFSU
Lesson from other countries

39. KVAFSU

40. KVAFSU
Live food in the
hatchery

41. KVAFSU
How long you rely on cowdung?

42. KVAFSU
Murrel Breeding

43. KVAFSU

44. KVAFSU
There is way…
§ Import seeds and strict quarantine
§ Import experts for murrel, sea bass, pompano
§ Economics first-Biology next
§ BSF
§ Pedigreed brood bank
§ Only registered farmers should involve
§ Seed bank
§ Contract farming concept of chicken industry

45. KVAFSU
Simple Grading Tool

46. KVAFSU

47. KVAFSU

48. KVAFSU

49. KVAFSU
Team FRIC thank each one of YOU