Effect of density on growth and survival of ornate rock lobster, Panulirus ornatus (Fabricius, 1798), in a flow-through raceway system

2001 ◽  
Vol 52 (8) ◽  
pp. 1425 ◽  
Author(s):  
C. M. Jones ◽  
L. Linton ◽  
D. Horton ◽  
W. Bowman
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Feeding Strategy ◽  
Experimental Unit ◽  
Rock Lobster ◽  
Growth And Survival ◽  
Mean Size ◽  
Monthly Sample ◽  
Flow Through

Juvenile ornate rock lobsters (Panulirus ornatus) (3.240.09 g; 13.80.13 mm CL) captured from the wild were stocked at three densities (14, 29, and 43 m–2) within each of four 4000-L fibreglass raceway tanks with flow-through seawater supply. Lobsters were provided with shelters consisting of opaque polyethylene platforms, 600 mm × 600 mm, supported on six 100-mm legs and were fed continually through the night with a commercial penaeid prawn (P. japonicus) pellet supplemented with prawn flesh once per day. Growth and survival were monitored by means of a monthly sample of 20 lobsters from each experimental unit. After 272 days, density treatments did not differ significantly in survival, which averaged 52.5% (2.8). Lobster size was also unaffected by density, and mean size for all lobsters was 225.34.68 g (61.84.7 mm CL) at harvest. Mortality was consistent through time and was almost entirely attributable to cannibalism of postmoult individuals. The cannibalism may have been due to inappropriate shelter and feeding strategy. Despite higher mortality than anticipated, growth was rapid, representing a specific growth rate of 1.56% day–1, sufficient to permit growth from 3 g to 1 kg within 18 months. The experiment confirmed the excellent potential of P. ornatus for commercial aquaculture.

scholarly journals PERGANTIAN PAKAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP LARVA IKAN GURAMI (Osphronemus gouramy) TURN FEED ON THE GROWTH AND SURVIVAL OF FISH LARVAE CARP (Osphronemus gouramy)

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Eka Indah Raharjo ◽  
Hastiadi Hasan ◽  
Darmawan .
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Fish Larvae ◽  
Average Length ◽  
Natural Food ◽  
Growth And Survival ◽  
Quality Of Water ◽  
Randomized Design ◽  
Absolute Growth

ABSTRAK Penelitian bertujuan untuk mengetahui pergantian pakan. penelitian menggunakan Rancangan Acak Lengkap yang terdiri dari 5 perlakuan dan 3 ulangan. Susunan perlakuan adalah sebagai berikut : Perlakuan A : eguchi 10 hari dan infusoria 10 hari, Perlakuan B : infusoria 10 hari dan eguchi 10 hari, Perlakuan C : Eguchi 20 hari, Perlakuan D : Infusoria 20 hari dan Perlakuan E : campuran eguchi 50% dan Infusoria 50% selama 20 hari. Penelitian ini dilakukan selama 20 hari untuk mengetahui laju pertumbuhan spesifik bobot, laju pertumbuhan mutlak panjang, kelangsungan hidup dan kualitas air sebagai data penunjang. Hasil penelitian menunjukkan pergantian pakan alami dengan pakan buatan menghasilkan respon yang baik dalam pertumbuhan larva ikan gurami. Pergantian pakan buatan (eguchi) dengan pakan alami (infusoria)(perlakuan A) memberikan hasil terbaik dengan rata – rata laju pertumbuhan spesifik bobot 5,3256%, rata – rata laju pertumbuhan mutlak panjang 5.70 mm dan rata – rata kelangsungan hidup 78.89%.  Kata Kunci : Infusoria, Eguchi, Larva Ikan Gurami, Laju Pertumbuhan ABSTRACT Research was aimed to determine the change of feed. research using completely randomized design consisting of 5 treatments and 3 replications. The composition of the treatment is as follows: Treatment A: Eguchi 10 days and infusoria 10 days, Treatment B: infusoria 10 days and Eguchi 10 days, Treatment C: Eguchi 20 days, Treatment D: Infusoria 20 days and Treatment E: a mixture of Eguchi 50% and infusoria 50% for 20 days. This research was conducted for 20 days to determine the specific growth rate weight, the absolute growth rate of long survival and quality of water as supporting data. The results showed turnover natural feed with artificial feed to produce a good response in the growth of larval carp. Substitution of artificial feed (Eguchi) with natural food (infusoria) (treatment A) gives the best results with the average - average specific growth rate 5.3256% weighted, averageabsolute growth rate, average length of 5.70 mm and survival rate 78.89% . Keywords : Infusoria, Eguchi, Fish larvae Gurame, Growth Rate

scholarly journals Growth and survival rate of freshwater lobster (Cherax quadricarinatus) fed different forage feed

2022 ◽  
Vol 956 (1) ◽  
pp. 012006
Author(s):  
A P A Samad ◽  
M F Isma ◽  
E Ayuzar ◽  
Ilhamdi ◽  
R Humairani ◽  
...  
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Feed Conversion ◽  
Sweet Potatoes ◽  
Cherax Quadricarinatus ◽  
Growth And Survival ◽  
Commercial Diet

Abstract Lobster is among freshwater crustaceans which is potentially cultivated in aquaculture system. This present study was conducted to determine the growth and survival rate of freshwater lobster Cherax quadricarinatus fed different forage feed. The experimental methode used a completely randomized design consisted of 4 treatments in triplicate: commercial diet (PL), commercial diet and carrots (PW), commercial diet and potatoes (PK) and commercial diet and sweet potatoes (PU). The experimental lobsters were 5-7 cm in size and 6-8 g in weight. Results indicated that forage feeding can affect the total weight and length, weight gain, specific growth rate and survival rate of lobster. Data showed the best weight gain and specific growth rate were found in PW (34.37±0.30%) and (1.05±0.03%), respectively. The lowest survival rate was seen in PU at 86.67%. However, the best feed conversion ratio gained by PL at 1.74±0.09. This study suggested that the combination of commercial diet with carrots provided the best growth performances in freshwater lobster Cherax quadricarinatus.

scholarly journals Influence of the size and form of Artemia sp. nauplii on the growth and survival of Atlantic sturgeon (Acipenser oxyrinchus Mitchill) larvae

2021 ◽  
Vol 29 (2) ◽  
pp. 69-79
Author(s):  
Iwona Piotrowska ◽  
Bożena Szczepkowska ◽  
Michał Kozłowski
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Growth Rates ◽  
Specific Growth ◽  
Survival Rates ◽  
Atlantic Sturgeon ◽  
Growth And Survival ◽  
Acipenser Oxyrinchus

Abstract The aim of the study was to determine the influence of the size and form of Artemia sp. feed on the rearing indices of Atlantic sturgeon larvae. In the experiment, the nauplius sizes used were 480 µm (group AD), 430 µm (group AM), and 430 µm frozen nauplii (group AI). After three weeks of rearing, the sturgeon from group AD had the highest mean body weight of 0.131 g that was statistically significantly different from groups AM (0.071 g) and AI (0.033 g). The longest total length was noted in group AD (2.8 cm) and was statistically different from the others (P ≤ 0.05). Specific growth rate in groups AD and AM was 14.7 and 11.8% d−1, respectively, and these values differed statistically from those in group AI at 7.8% d−1. The highest survival rate was recorded in group AD at 60.6%, while the lowest was noted in group AI at 15.6%, and the differences between these two groups were statistically significant. The results of the experiment indicated that a feed of live 480 µm Artemia sp. nauplius significantly accelerated the growth rates and increased the survival rates of Atlantic sturgeon larvae.

Water renewal in static systems: Impacts on productivity and survival in Clarias gariepinus (Burchell, 1822)

2021 ◽  
Vol 29 (2) ◽  
pp. 59-67
Author(s):  
P.A Opute ◽  
G.F Odion
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Clarias Gariepinus ◽  
Daily Weight Gain ◽  
Static System ◽  
Growth And Survival ◽  
Water Renewal ◽  
Daily Water

The impact of water renewal in a static system on the growth and survival of Clarias gariepinus fingerlings was investigated under six different treatments, namely: T1 (daily water renewal), T3 (three days water renewal), T5 (five days water renewal), T7 (seven days water renewal), T9 (nine days water renewal) and T14 (fourteen days water renewal). Results showed that growth performance and survival was significantly (P< 0.05) affected by the water renewal frequencies. After six weeks, weight gain, daily weight gain, specific growth rate, final body weight, was significantly higher in T5 (P< 0.001). Likewise, survival in T5 was significantly higher compared to other groups (P< 0.001). For all evaluated parameters, T14 had the least performance. Slow response to feeding, slow movement and hanging on the water surface was observed in T9 and T14. Daily water renewal tank had significantly (p < 0.05) higher dissolved oxygen (04.52 mg L-1) while electrical conductivity (800.00 μScm-1) was significantly higher in T14 (P< 0.001). From the result, the growth and survival of the catfish fingerlings in T5 are superior to other renewal regimes. Therefore, for optimum growth and productivity of African catfish fingerlings reared in a static system, it is recommended that water renewal be performed every five days. Key words: Clarias gariepinus, water renewal, weight gain, water quality, behaviour, feed conversion ratio, specific growth rate

scholarly journals Tambaqui growth and survival when exposed to different photoperiods

2006 ◽  
Vol 36 (3) ◽  
pp. 381-384 ◽  
Author(s):  
Paulo Henrique Rocha Aride ◽  
Rodrigo Roubach ◽  
Sérgio Ricardo Nozawa ◽  
Adalberto Luís Val
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Continuous Light ◽  
Control Fish ◽  
Continuous Darkness ◽  
Growth And Survival ◽  
Colossoma Macropomum ◽  
Fish Weight ◽  
Natural Photoperiod

The use of different photoperiods (light) were investigated during tambaqui (Colossoma macropomum) juvenile growth under captivity. Light intensity tested was: continuous dark (24hrs without light), natural photoperiod simulation (10hrs of light and 14hrs without light) and continuous light (24 with light). No mortality was recorded among treatments. Significant differences was observed after 50 days of experiment among mean fish weight, fish kept under a continuous darkness showed a better specific growth rate (6.02%) when compared to control fish (natural photo period, 3.67%). Fish exposed to continuous light presented the lowest mean specific growth rate (2.04%). It is possible to improve tambaqui juvenile weight gain performance when kept under continuous darkness.

scholarly journals Feed efficiency with the addition of probiotics for asang fish fry, Osteochilus vittatus, CV

DEPIK ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 180-185
Author(s):  
Usman Bulanin ◽  
Yuneidi Basri ◽  
Sri Puja Lestari
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Feed Efficiency ◽  
Specific Growth ◽  
Growth And Survival ◽  
Randomized Design ◽  
Commercial Feed ◽  
Test Fish ◽  
The Mean ◽  
Completely Randomized Design

The purpose of this study was to determine the addition of probiotics in commercial feed to the growth and survival of Asang fish (Osteochilus vittatus CV) fry. This study used an experimental method with a completely randomized design (CRD) with 4 treatments and 3 replications. The test fish used were 120 fish with a size ranging from 5-8 cm. The test fish were kept in a waring cage made of a type of paralon frame with a size of 40 x 40 x 45 cm. The treatment in this study was A (without probiotics), treatment B (addition of probiotic 10 ml/kg of feed), treatment C (addition of probiotic 20 ml/kg of feed), and treatment D (addition of probiotics 30 ml/kg of feed). From the results of this study, the highest specific growth rate was found in treatment D (6.66 ± 1.15 g), while the mean survival was 100% for all treatments. The highest FCR of fish fry was found in treatment A namely 1.43 ± 0.22, and the lowest in treatment D namely 1.12 ± 0.21, and for feed efficiency in treatment D, namely 95.24 ± 1.04 %.Keywords:Asang fishEfficiencyGrowthSurvival

scholarly journals SALINITAS OPTIMAL UNTUK PENDEDERAN BENIH IKAN BETUTU (Oxyeleotris marmorata)

2017 ◽  
Vol 11 (4) ◽  
pp. 347
Author(s):  
Idil Ardi ◽  
Eri Setiadi ◽  
Anang Hari Kristanto ◽  
Ani Widiyati
Keyword(s):  
Growth Rate ◽  
Blood Glucose ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Economic Value ◽  
Sand Goby ◽  
Optimal Salinity ◽  
Absolute Weight ◽  
Growth And Survival ◽  
Absolute Length

Ikan betutu (Oxyeleotris marmorata) termasuk ikan perairan tawar yang memiliki nilai ekonomis penting dan sangat disukai karena memiliki daging yang tebal, tulangnya sedikit, dan gurih. Salah satu faktor lingkungan yang berpengaruh dalam kegiatan budidaya adalah salinitas. Penelitian bertujuan untuk mendapatkan salinitas optimum dalam pemeliharaan benih ikan betutu yang diharapkan dapat meningkatkan sintasan dan pertumbuhannya. Penelitian menggunakan rancangan acak lengkap (RAL) dengan empat perlakukan berdasarkan perbedaan salinitas yaitu kontrol ppt, 1 ppt, 3 ppt, dan 5 ppt. Setiap perlakuan dilakukan tiga kali pengulangan. Hasil penelitian menunjukkan terdapat perbedaan nyata (P<0,05) terhadap laju pertumbuhan spesifik, panjang mutlak, bobot mutlak, dan kadar glukosa darah terhadap kontrol (salinitas 0 ppt) setelah dipelihara selama 56 hari. Laju pertumbuhan mutlak, bobot mutlak, dan glukosa darah paling baik dijumpai pada benih yang dipelihara dengan salinitas 3 ppt, yaitu 0,94 ± 0,09%; 2,53 ± 0,35 mm; 37,33 ± 6,28 g; dan 0,06 ± 0,01 g/dL. Pemeliharaan benih betutu membutuhkan air bersalinitas. Untuk mengoptimalkan pertumbuhan dan sintasan air media budidaya disarankan bersalinitas 3 ppt.Sand goby (Oxyeleotris marmorata) is one of freshwater fish that has high economic value and is more desired for its thick meat, bone less, and tasteful. Salinity is one of the most important environmental factors in fish culture. The purpose of this study was to determine the optimal salinity concentration on growth and survival of sand goby fish. A completely Randomized Design (CRD) was used in this study with four treatments of salinity levels comprising A) Control; B) 1 ppt; C) 3 ppt; D) 5 ppt. Each treatment was consisted of three replicates. The result showed significant differences (P<0.05) in specific growth rate, absolute length, absolute weight, and blood glucose among the treatments against control after 56 days cultured. Seed reared under the salinity of 3 ppt was better than other treatments in terms of specific growth rate (0.94±0.09%), absolute length (2.53±0.35 mm), absolute weight (37.3±6.28 mg), and blood glucose (0.06±0.01 g/dl). Based on the present result, it was suggested that 3 ppt of salinity is better for optimize the growth and survival of sand goby.

scholarly journals Pengaruh Pemberian Berbagai Jenis Pakan Terhadap Pertumbuhan Dan Tingkat Kelulushidupan Ikan Silih (Macrognathus aculeatus) [The Effect Of Vary Feed On Growth And Survival Rate Of Spiny Eel (Macrognathus aculeatus)]

2019 ◽  
Vol 2 (2) ◽  
pp. 129
Author(s):  
Akhmad Taufiq Mukti, Denta Batara Kusuma Hendra, Boedi Setya Rahardja
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Design Method ◽  
Growth And Survival ◽  
Average Value ◽  
Absolute Length ◽  
Macrognathus Aculeatus ◽  
Range Test

Abstract The purpose of this research was to know the effect of kinds of feeding on growth and survival rate of spiny eel. This research used experimental method and Completely Random Design method with six treatment and each treatment was replicated four times. The treatments are : artificial feed (A), nila fish (B), shrimp (C), combination of artificial feed with nila fish (D), combination of artificial feed with shrimp (E) and combination of nila fish with shrimp (F). The main parameter observed are specific growth rate, growth of absolute length and survival rate. The support parameter is water quality. The data analiysis of this research used a Analysis of Varian (ANAVA) and to determine the best performed used Duncan’s Multiple Range test. The result of this research showed that given kinds of feeding was not significantly difference (p>0,05) to specific growth rate, growth of absolute length and survival rate of spiny eel. The average value of growth of absolute length, specific growth rate and survival rate of each treatment are treatment C (2,5062 mm), treatment C (0,9375 %BT/hari) and treatment C (71,6495%).

scholarly journals Effects of Honey Supplementation in Female Brood Feed on Male and Female Percentages, Growth, and Survival Rate of Crayfish Red Claw (Cherax quadricarinatus) Seed

2009 ◽  
Vol 8 (1) ◽  
pp. 37
Author(s):  
Akhmad Taufiq Mukti
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Descriptive Analysis ◽  
Daily Growth ◽  
Male And Female ◽  
Growth And Survival ◽  
Scale Experiment ◽  
Female Brood

<p>The aim of this study was to know effects of honey supplementation in female brood feed on male and female percentages, growth, and survival rate of crayfish red claw seed. The method that used in this study was laboratory scale experiment. The treatments that was applied were addition of honey dosages in female brood feed of crayfish red claw, i.e. 0 (control), 50, 100, 150, 200, 250 and 300 ml/kg feed. Parameters test were male and female percentages, daily growth (G), specific growth rate (SGR) and survival rate of crayfish red claw seed. Data analysis that used was descriptive analysis. The result of this study indicated that supplement of honey in female brood feed of crayfish red claw influenced male and female percentages, growth rate, and survival rate of seed. Treatment of honey dosage 300 ml/kg feed has high result, i.e. male percentage was 58,09% (female, 41.09%), daily  growth was 0.59 mm/day, specific growth rate was 0.10% of BW/day, and survival rate was 96.77 %. Treatment of honey dosage 0 ml/kg feed (control) showed low result, i.e. male percentage was 46.72 % (female, 53.28%), day growth was 0.55 mm/day, specific growth rate was 0.01%  of BW/day, and survival rate was 94.74%.</p> <h3>Keywords: supplementation, honey, crayfish, sex, growth</h3> <p> </p> <h3>ABSTRAK</h3> <p>Tujuan penelitian ini adalah untuk mengetahui pengaruh suplementasi madu dalam pakan induk betina terhadap persentase jantan dan betina, pertumbuhan dan kelangsungan hidup benih lobster air tawar <em>red claw</em>. Metode yang digunakan dalam penelitian ini adalah eksperimen. Perlakuan yang digunakan adalah penambahan dosis madu dalam pakan induk betina lobster air tawar <em>red claw</em>, yaitu 0 (kontrol), 50, 100, 150, 200, 250 dan 300 ml/kg pakan. Parameter yang diuji adalah persentase jenis kelamin jantan dan betina, pertumbuhan harian (G), laju pertumbuhan spesifik (SGR) dan kelangsungan hidup dari benih lobster air tawar <em>red claw</em>. Analisis data yang digunakan adalah deskriptif. Hasil dari penelitian ini menunjukkan bahwa suplemen madu dalam pakan induk betina lobster air tawar <em>red claw</em> mempengaruhi persentase jantan dan betina, tingkat pertumbuhan dan kelangsungan hidup benih. Perlakuan dosis madu 300 ml/kg pakan memberikan hasil yang tertinggi, yaitu persentase jantan sebesar 58,095 % (betina, 41,095 %), pertumbuhan harian sebesar 0,596 mm/hari, laju pertumbuhan spesifik sebesar 0,103 % BT/hari dan kelangsungan hidup sebesar 96,767 %. Perlakuan dosis madu 0 ml/kg pakan (kontrol) menunjukkan hasil yang terendah, yaitu persentase jantan sebesar 46,718 % (betina, 53,282 %), pertumbuhan harian sebesar 0,552 mm/hari, laju pertumbuhan spesifik sebesar 0,099 % BT/hari dan kelangsungan hidup sebesar 94,742 %.</p> <p>Kata kunci: suplementasi, madu, lobster air tawar, jenis kelamin, pertumbuhan</p>

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