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JICA インドネシア淡水養殖振興計画におけるナマズ（パティン）親魚養成
国際水産技術開発
古澤 亜吐夢
① パティンとは
② 親魚生産
③ 親魚管理
④ 採卵
⑤ 養魚家へのインパクト
Pangasius hypophthalmus (Patin siam)
ナマズ目パンガシウス科 （Pangasiidae）
パティンとは
Brood
Larvae15 days
2cm
Seed Production Farmers
養殖サイクル
Breeding
Larval Rearing
30 days8cm
Grow-out Farmers
BBAT Jambi
Brood
Larvae
Seed Production Farmers
養殖サイクル
Breeding
Larval Rearing
30 days8cm
Grow-out Farmers
BBAT Jambi
15 days2cm
Seed Production Farmers Grow-out
Farmers
Brood
Larvae15 days
2cm
BBAT Jambi～Aug.2005
Breeding
Larval Rearing
Brood
Larvae15 days
2cm
BBAT Jambi～Aug.2005
Breeding
Larval Rearing
JAWA
15 days2cm
30 days8cm
親魚生産
計画的な生産活動の実施
成熟期間の把握
0.000
1.000
2.000
3.000
4.000
5.000
6.000
7.000
jan feb mar apr may jun jul aug sep
month
GSI
male
female
GSI change of patin siam broodstock
♂ more than 1.5 year → (less than) 1year ♀ more than 2.5 years → 2years
Feeding and Growth Data of Candidate of Patin Siam Brood (Dec. 2005)
feedingrate(%)
Days gain weight(kg)
total feed(kg) FCR cost of feed
(Rp.4,000/kg)Income from sold
fish Balance
710 Rp17,736,000 Rp75,506,680 Rp57,770,680
adlibitumto 10
-
10 to 6
-
5 to 2.5
1.6 to 0.6 3 Rp17,736,000
-
84 Rp.4,068,400
-
1.701017.10
Rp. 69,390,000(Rp. 30,000/kg) Rp51,654,000546 1640
2313.0010-Dec-07 62.3 3000.0 771
1562.82
1688.49
1732.44
771
771
771
9-Apr-07 62.3
30-Oct-06
2247.0
2027.0
2190.0
57.5
23-Jan-07 60.7
1263.0
14-Sep-06 54.1 1671.0
24-Jul-06 48.2 776
--673.00
776
30-Dec-05
1296.70
4434
12-Jun-06 43.5 867.3 776
980.09
-
biomass
(kg)
Date ofsampling/selection
TL (cm) BW (g) numberof fish
21000
21000 73.40
1.53 0.03 21000
1.18 24.75
0.63
157.69
420.31
9.0 6.5 2500 16.16
26.6
63.1
420.3
2500 66.61
2500
1000
149.4 2500 373.58
219.3 1000 219.31
191.3
12-Jan-06
17-Apr-06
13.6
17.4
32.5
13-Mar-06 23.4
20-Mar-06 26.5
5.07
2500 478.34N. D.
25-Jan-06
20-Mar-06
N. D. 3.50
25-Jan-06
9-Feb-06
20-Feb-06
72.77 55.70 0.77
- - -
597
1.09
Factors on each production period
- - -
26
-
54
-
657.46
12-Jun-06 N. D. 816.8 1000 816.75
15-May-06 38.3 657.5 1000
Rp. 3,700,000(Rp.200/fish)
Rp.2,014,000 Rp.1,554,180(Rp.6,000/kg)
- -
Rp.862,500(Rp.6,000/kg)
462.18 503.50
-Rp.3,205,900
Economical analysis
Rp. 3,477,200
-
- -
-Rp.459,820
-
Rp. 222,800
生産過程の標準化
♀ 50-60♂ 50-60
1 2 3
新世代親魚の導入
親魚池改善（仕切、数）
計画的な生産管理
親魚管理
Before
♀ 20
♂ 10
♀ 20
♂ 10
♀ 20
♂ 10
New generationAfter
Rainy Season
0%
20%
40%
60%
80%
100%
Jan Feb Mar Apr May June July
0 or 1
2
3
採卵適期
成熟度
パティン雌親魚の成熟度変化
Dry Season
個体識別による成熟度の変化No.
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JulJan Feb Mar Apr
X no data
May Jun
X
no data
no data
X
X
no data
no data
X no data
no data
no data no data no data
→ → → →
no data no data
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no datano data
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no data
X
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No.
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JulJan Feb Mar Apr
X no data
May Jun
X
no data
no data
X
X
no data
no data
X no data
no data
no data no data no data
→ → → →
no data no data
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採卵
ハンドリング技術向上
ハンドリング技術向上
卵質評価
Jan/03-May/04% of Hatching
% of Ovulation78.05
63.41
Apr/05-May/06
97.62
90.48
50.00
60.00
70.00
80.00
90.00
100.00
Effect of technical improvement
method Av. W Female Harvested larvae larvae/ female larvae/w female
fo rmar 5 .53 6 ,385 ,350 155 ,740 28 ,179
presen t 4 .84 15 ,694 ,000 373 ,667 77 ,208
(%)
Jan/03-May/04
基本的改善事項
• 観察する
• 計画・準備する
• 記録を取る
課題
• 計画的な親魚生産・配布体制
• 乾期の親魚管理
• 効率性・汎用性の高い親魚養成法
• 卵質の向上（孵化率・生残率）
Brood
Larvae15 days
2cm
Seed Production Farmers
BBAT Jambi～Aug.2005
Breeding
Larval Rearing
30 days8cm
Grow-out Farmers
BBAT Jambi
Increase of Production
Limited capacity for production
Low productivity
BroodBreeding
Seed Production
Technical
Improvement
Farmers
BBAT Jambi
一次種苗Seed Production Farmers
Brood
LarvaeBreeding
二次種苗
4
1 1
67
0
2
4
6
8
10
12
0-10 10-20 20-30 30-40 40-50 50-
SR (%)
1 sample
Number of Farmer
1
63
52
more than 2 samples
養魚家による飼育成績
生残率の損益分岐点
0
1
2
3
4
5
6
7
8
0 50 100
SR (%)
Sale
(Mill
. Rp.
)
Sale
初期投資
19,9
invest
Break-even Point
0
1
2
3
4
5
6
7
8
0 50 100
SR (%)
Sale
(Mill
. Rp.
)
Sale
運営経費
30,9
operation cost a
22,2
operation cost b
Break-even Point
50,8
invest + a
42,0
Invest + b
＋運営経費
0
50
100
150
200
250
2005 4th 2006 1st 2006 2nd 2006 3rd 2006 4th
0
5
10
15
20
25
30
35
40
45
50
57.6 100.67 126.61 161.27 200.87
Water Volume (t)
6
23
33
43
15
No. Farmers
water volume (t)
number of Farmer
Year
種苗生産養魚家と地域の生産キャパシティーの変化
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
04 Jul-Dec 05 Jan-Jun 05 Jul-Dec 06 Jan-Jun 06 Jul-Dec
number of seed (*1,000)
0
50
100
150
200
250
water volume (t)
larvae
14day
water volume
孵化仔魚の配布開始
Num
ber
of L
arva
e ( ｘ
1,00
0)
Wat
er V
olum
e (t
)
地域における種苗生産量の変化
BBAT Jambi
一次種苗Seed Production Farmers
Brood
LarvaeBreeding
二次種苗
Farmers
BBAT Jambi2007
Broodstock Production
二次種苗
一次
LarvaeLarvaeLarvae
Breeding Breeding Breeding
TechnicalAssistance
• 配布先、時期の選定
• 配布後のモニタリング
• 双方向の情報交換
課題
