Báo cáo nghiên cứu khoa học " Status of common carp in Vietnam " pptx

Status of common carp in
Vietnam
Le Quang Hung
Research Institute for Aquaculture
No.1, Bac Ninh, Vietnam
Results
The project investigated at
North, Central and South in
Vietnam including:
 State and private hatcheries
produce a common carp.
 Farmer rearing and culture
a common carp.
Hatcheries/F
armers
No %
Households 91 68.4
State
hatcheries
30 22.6
Private 12 9.0
Total 133 100.0
Culture conditions
Condition %
Rice-fish 6.77
In pond 78.95
Rice-fish and pond 12.78
Cage/pen 1.50
Common carp culture condition
7.89
1.50

12.78
78.95
Rice-fish
Pond
Rice-fish and Pond
Cage/pen
Water source
Water source used in culture common carp (%)
17.3
3.8
78.9
Irrigation
Rain
Stream
Common carp grow-out with other species
0.87
2.33
3.38
11.24
9.03
10.87
3.12
9.75
18.53
30.88
Common
Grass carp
Silver carp
Bighead carp
Rohu

Mrigal
Tilapia
Black carp
Soloma
Others
Culture knowledge in Common carp
41.72
29.80
5.30
8.61
14.57
Self study
Media
Communication
Heritage
Training
Source of common carp seed
14.79
4.93
4.23
55.63
20.42
River, stream
Hatcheries
Traders
Others
Trader and Hatcherise
Common carp breeds cultured
15.09
21.70

57.55
5.66
0
20
40
60
80
Local Selective Hybrid Others
Traders selling seed of carp (%)
96.19
3.81
0.00
20.00
40.00
60.00
80.00
100.00
Yes No
Common carp production
 Some hatcheries established early at 1966
 Some hatcheries established at 2005
 The most hatcheries established during 1982-1984
 A artificial technique for common carp at both state
and private hatcheries, re-production 1-3 per year.
Common carp production
 Breeding methods:
 A artificial technique applies for common
carp in both state and private hatcheries.
 Common carp re-produce about 1-3/year.
 Feed for mature:

 Bud rice, soya bean, cassava, muck and
pellet feed.
 Density: 0.4-1.0 ind/10m
2
Carp seed quality evaluation
62.41
25.56
11.28
0.75
Good
Moderate
Poor
No idea
Common carp seed demand
36.84
2.26
60.15
0.75
Increase
Decrease
No idea
Not change
Supplied seed to neighbours
0.75
32.33
1.50
65.41
Very often
Rarely
Others

Some time
Change common carp broodstock
Change (%)
Every year 41.2
2 year 17.6
3-4 years 32.4
More 4 year 8.8
 Broodstock of carp
changing and addition
about 10-20% in total
No. broodstock were
64,50% in hatcheries.
Source of carp brood change
 Brood common carp
addition or change from
outside: 57,90%
 Brood common carp
addition or change on
farm: 31,60%
57.9
31.6
10.5
Outside
On farm
Both
Source of carp brood change
 Most common
carp change or
addition in
hatcheries source

at RIA#1 (69,60%)
69.60
4.30
26.10
RIA#1
Other
Hungarian strain
Hatcheries: Use the same carp
brood for next breeding season
89.47
10.53
0.00
20.00
40.00
60.00
80.00
100.00
Yes No
Thank you !