In-plant Training at Dambulla NAQDA

2. National Aquaculture Development Authority (NAQDA)
was established in 1999 under the provisions made available
by the National Aquaculture Development Authority Act
(No. 53 of 1998). It is the main state sponsored organization
mandated for the task of development of the aquaculture and
inland fisheries sector in Sri Lanka. Presently, it is coming
under the purview of the Ministry of Fisheries and Aquatic
Resources.

3. The vision is to be an apex body in the region
responsible for sustainable development and
management of aquaculture and inland fisheries to
ensure food security in order to improve the quality of
life of the people

4. The mission is to contribute to the improvement of the
socio-economic conditions of rural societies through
alleviation of poverty by increasing freshwater and
brackish water fish production and introducing new
technologies for utilization of aquatic resources for
small, medium and large scale enterprise development.

5. Officer In Charge
Mr.A.R.Mudalige
Breeding sector Rearing Sector
Carps Breeding Tilapia Breeding P/L to FryFry to Fingerling
Other Office Workers
Labors

6.  Senior Aquaculturist 01
 Aquaculturist 03
 Assistant Aquaculturist 03
 Store Keeper 01
 Technician 01
 Clerk 01
 Driver 01
 Laborers 21

7. Pond Type Area/m2 No of Ponds Total Area m2
A 1800 10 18000
B 1200 10 12000
C 300 10 3000
R 325 10 3250
N 24 20 480
Total 36,730

9. Ponds number Species
B4 Catla, Rohu, Mrigal ,Hirikanaya
B5 Common carp,
B8 Grass Carp, Catla, Silver Carp, (YB)
A4 Rohu, Bighead , Common Carp,
A6 Catla, Rohu
A8 Bighead, Silver Carp
A9 Catla , Rohu
Total area 10,800m2

10.  C1 – C10
 Total area 3000 m
2

11. Ponds Number of ponds Area m2
B6, B7, B9,B10 1200 X 4 4800
A5, A7,A10 1800 X 3 5400
R1 – R10 325 X 10 3250
Total area 10,800
Total usable ponds area - 27250m2

12. •Catla ( Catla catla )
•Rohu ( Labeo rohita )
•Mrigal ( Cirrhinus mrigala )
•Grass Carp ( Ctenophanygoden idellus )
•Silver Carp ( Hypophthalmichthys molitrix )
•Big Head ( Aristichthys nobilis )
•Common Carp (Cyprinus carpio)
•Nile Tilapia ( Oreochromis niloticus )
•Mozambique Tilapia ( Oreochromis mossambicus )
•Red Tilapia
•GIFT Tilapia

13. Common Carp ( Cyprinus carpio )

14. Catla ( Catla catla )

15. Rohu ( Labeo rohita )

16. Mrigal (Cirrhinus mrigala )

17. Grass Carp (Ctenophanygoden idellus )

18. Silver Carp ( Hypophthalmichthys molitrix )

19. Big Head ( Aristichethys nobilis )

20. GIFT Tilapia (Oreochromis niloticus )

21. Nile Tilapia ( Oreochromis niloticus )

22. Mozambique Tilapia ( Oreochromis mossambicus )

23. Red Tilapia

24. Red Carp

25.  Artificial Breeding of Carp species
 Breeding of GIFT Tilapia
 Rearing of Fish
 Feeding of reared species
 Packing and Transporting

26.  Mature parent fish are injected with spawning inducing
agents
 Without these agents Chinese/ Indian carp will not
spawn in ponds because the external ecological
conditions in the fish ponds cannot satisfy the
reproductive requirements of the brood fish
 Fish are injected with extraneous hormones
* PG
* HCG
* LHRH - A

27.  Select mature fish
 Inject hormones
 Release to breeding hapa/ spawning tank
 Remove brooders and collect eggs or eggs are stripped
from female fish and artificially fertilized with sperm
 Fertilized eggs are transferred to incubation tank /
hatchery jar

28. Female
 Smooth pelvic fin
 Bulging soft abdomen
 Swollen, soft, reddish
vent
Male
 Rough pelvic fin
 Milt exuded when
press the abdomen
gently

29.  We participated in catla catla breeding season on 28.03.2011
 Artificial breeding is a short time work done within 24 hours
 They were selected 12 matured males and 6 matured female
fishes for breeding activity

32. MaleFemale
Anus
Oviduct
Urinary pore
Genital papilla
Anus
Genital papilla
Urogential
aperature

33.  There are 2 main divisions of rearing
1. Post Larvae to Fry Rearing
Managed By : Mr. Pathmasiri
2. Fry to Fingerling Rearing
Managed By : Mr. Mangala

34.  They use eggs to newly hatched post larvae’s. They
give these eggs for 3- 4 days for P/Ls they haven’t
developed mouth particles.
 After the 4 days they give soya milk
 When animals are reached fry level they use prima
fish foods.

35. Prima food type Age of the fish
00 Fry
01 Fingerlings
02 Fingerlings and advanced
fingerlings
03 Brooders

38.  NAQDA supply fish seeds for farmers as their
demand
 There are some measuring instruments to count the
number of fish seeds while packing
 They use average value to pack fish seeds and
transport them by vehicles

39.  10mL ( For P/L measuring )
 15 mL – 1 tb spoon
 60mL – ¼ cup
 80mL – 1/3 cup
 125mL – ½ Cup

42.  P/L packing to Pollonaruwa (14/03/2011)
 Rohu fry packing to Anuradhapura (15/03/2011)
 Gift Tilapia fry packing to Galnawa (23/03/2011)
 Catla Catla and Grass carp packing (28/03/2011)

43.  Learnea – Neguan 5 ppm prolong emersion
 Aargulus – Salt bath 30ppt- 10-30 second
 Tricodina – Formalin 15-25 ppm prolong emersion

44.  Transport facilities to Dambulla centre is vey lack, Labors
face difficulties about day by day transports. So it is necessary
to improve these facilities.
 There is a hostel for trainees but it is with lack facilities so we
faced some difficulties too. So NAQDA must improve
facilities.
 There is a public road within the centre’s land area. It caused
some problems about theft and damaging activities. So they
must remove that public road to outside of the center.