Growth and Survival of Larva/Patih Jambal Fish Seed (Pangasius djambal) Maintained Solidly Different Distribution
Jadmiko Darmawan*,
Evi Tahapari dan Suharyanto
Citation: Darmawan J, Suharyanto ETD (2017) Growth and Survival of Larva/Patih Jambal Fish Seed (Pangasius djambal) Maintained Solidly Different Distribution. J Fish Aqua Dev: JFAD-121. DOI:10.29011/JFAD-121/100021
1.
Abstract
Jambal catfish (Pangasius
djambal) is a patin of indigenous species of Indonesia that are in
great demand by consumers both local and export because it has white meat
character and taste better. This study aims to determine the performance of
larvae / catfish jambal fish on the character of growth and synthesis are
maintained with different density of the spread. Test fish is larvae of catfish
jambal result of spawning patin jambal F1 of selection result. Test fish kept
in aquarium measuring 60 cm x 30 cm x 40 cm filled with water media as much as
25 liters. As the stocking density treatment carried out were 30, 60 and 90
head / liter. Maintenance performed for 28 days. The results showed that
different density had significant effect on larvae growth of jambal catfish
(p<0.05) but did not give a significant effect on larval larvae (p>0,05).
The best growth was seen in the treatment of 30 head / liter which yielded the
final weight of 1,1657 grams / tail while the lowest growth was seen in the 90
tail / liter treatment which yielded the final weight of 0.7306 gram/head. The
synthesis values of treatments 30, 60 and 90 head/liter were 35.33%, 33.33%
and 39.96%, respectively.
1. Introduction
Catfish is one type of freshwater fish consumption that has important economic
value and much in demand by local and international community. The potential of
catfish exports to the European market is increasing with the issuance of
policies to limit the hunting of cod. Instead, the European community began to
turn to white catfish and had a texture similar to cod. Currently 80% market
share of catfish in the world and 25% market share of catfish in the European
market is dominated by Vietnamese patin [1].
This research was conducted at Testing Laboratory of Patin Hatchery of Fish
Breeding Research Institute (BPPI), Sukamandi in February - March 2016. The
study was conducted using Completely Randomized Design with three density
treatments, ie 30, 60 and 90 head/liter, each repeated as many three times. The
tested fish were larvae of artificial spawning result of selected catfish
jambal with total length 0,50 cm and average weight equal to 0.0005 gram. The
test fish are maintained using a 60 x 30 x 40 cm3 aquarium with 25-liter water
maintenance volume equipped with aeration installation. The study was conducted
for 28 days of maintenance.
The larval catfish larvae begin to feed 36 hours after hatching, because
during that time the larvae still have egg yolks that stick to the body and are
absorbed for food. Feeding of naupli Artemia sp. Given for 5 days until
maintenance day 7. Nauplii Artemia sp. Given every 2 hours on the first day of
feeding and every 3 hours on the second day until the fifth day of feeding.
Then continued with natural feeding using a silk worm smoothed to day 12, with
feeding frequency every 3 hours. After the larvae were 14 days old, pellet meal
was given in the form of powder with 38-40% protein content, with feeding
frequency every 4 hours.
The parameters observed included daily growth rate, daily weight growth, specific weight growth rate and seed survival rate. Water quality parameters such as dissolved oxygen, temperature, pH, and turbidity were observed every 10 days using the Water Quality Checker (WQC) tool, while the nitrite and total ammonia parameters were observed by titrimetry in the laboratory. To know the growth of the daily length is calculated based on the formula [7]:
PLH= (Lt-Lo)/t
Where:
PBH= Daily weight gain (grams / day)
Wt= The average weight of seed end (gram)
Wo= The mean
initial weight of larvae (grams)
T = Maintenance time
The growth of daily weight is calculated based on the formula [7]:
PBH= (Wt-Wo)/t
Where:
PBH= Daily weight gain (grams / day)
Wt= The average weight of seed end (gram)
Wo= The mean
initial weight of larvae (grams)
T = Maintenance time
Specific seed
growth rates of test fish were calculated using the formula [8]:
SGR=√(t&Wt/Wo)- 1 x 100%
Where: SGR= Specific
Growth Rate (%)
T = Maintenance time (day)
Wt = The final weight of the seed (gram)
Wo= The initial
weight of seed stocking (gram)
Seed test seeds were calculated using the formula [7]:
SR= Nt/No x 100%
Where: SR=
Sintasan (%)
Nt= Number of seed
harvest (tail)
No= The initial
number of seed stock (tail)
Data of weight growth, standard length, total length and seed survival were
analyzed using variance analysis. To know the more specific difference between
the treatments, the smallest difference was done using the SPSS 19 program.
Description: The value
followed by different superscript letters in the same column shows a
significantly different value (p <0.05).
Description: The value
followed by different superscript letters in the same column shows a
significantly different value (p <0.05).
4. Conclusion
Treatment |
Initial weight (gram) |
The final weights (grams) |
PBH (g / day) |
SGR (%) |
A |
0.0005 |
1.1331 |
0.0404 |
31.46 |
30 tail/L |
0.0005 |
1.0945 |
0.0391 |
31.29 |
0.0005 |
1.2694 |
0.0453 |
31.99 |
|
1,17±0,09 ͣ |
0,0416±0,0033 ͣ |
31,58±0,36 ͣ |
||
B |
0.0005 |
0.8097 |
0.0289 |
29.89 |
60 tail/L |
0.0005 |
0.9294 |
0.0332 |
30.53 |
0.0005 |
1.2295 |
0.0439 |
31.84 |
|
0,99±0,22 ͣ ᵇ |
0,0353±0,0077 ͣ ᵇ |
30,75±0,99 ͣ ᵇ |
||
C |
0.0005 |
0.5795 |
0.0207 |
28.35 |
90 tail/L |
0.0005 |
0.8481 |
0.0303 |
30.10 |
0.0005 |
0.7643 |
0.0273 |
29.62 |
|
0,73±0,14 ᵇ |
0,0261±0,0049 ᵇ |
29,36±0,91 ᵇ |
Table 1: The performance of jawal catfish seed weight growth on different dispersing density.
|
Start length (cm) |
End length (cm) |
PLH (cm / day) |
Sintasan (%) |
A |
0.50 |
5.2 |
0.17 |
54.67 |
30 tail/L |
0.50 |
4.7 |
0.15 |
25.33 |
0.50 |
5.1 |
0.16 |
26.00 |
|
4,99±0,25a |
0,16±0,01a |
35,33±15,75a |
||
B |
0.50 |
4.3 |
0.14 |
50.67 |
60 tail/L |
0.50 |
4.4 |
0.14 |
35.27 |
0.50 |
4.8 |
0.15 |
14.07 |
|
4,50±0,26b |
0,14±0,01b |
33,33±18,38a |
||
C |
0.50 |
4.1 |
0.13 |
55.38 |
90 tail/L |
0.50 |
4.4 |
0.14 |
29.78 |
0.50 |
4.2 |
0.13 |
34.71 |
|
4,23±0,15ᵇ |
0,13±0,01ᵇ |
39,96±13,58a |
Table 2: Horizontal growth and survival rate of jugal catfish seeds at different dispersing densities.
Parameter |
Treatment |
The optimum range of jelly catfish |
||
A (30 tail/L) |
B (60 tail/L) |
C (90 tail/L) |
||
Temperature (°C) |
29,6 - 30,3 |
29,7 - 30,4 |
29,7 - 28,6 |
26,0 - 31,0* |
pH |
6,80 - 7,05 |
6,75 - 7,06 |
6,76 - 7,14 |
6,0 - 8,9* |
Dissolved oxygen (mg/L) |
3,57 - 4,02 |
3,63 - 3,91 |
3,71 - 3,92 |
> 3,0** |
Turbiditas (NTU) |
4 - 15 |
6 -21 |
5 - 25 |
- |
Ammonia (mg/L) |
0,0216-0,5058 |
0,0216-1,1069 |
0,0216-3,0317 |
< 0,2** |
Nitrite (mg/L) |
0,0185-2,6433 |
0,0185-2,9594 |
0,0185-1,3533 |
< 0,1** |
*Legendre et al. (2000) [11]; **Slembrouck et al. (2003) [12] |
Table 3: Water quality of Patine jambal seed maintenance at different dispersing densities.
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