Optimization of stocking density and its impact on growth and physiological responses of Pangasianodon hypophthalmus (Sauvage, 1878) fingerlings reared in finger millet based biofloc system

Aquaculture ◽  
2022 ◽  
pp. 737909
Author(s):  
P. Nageswari ◽  
A.K. Verma ◽  
Subodh Gupta ◽  
A. Jeyakumari ◽  
M.H. Chandrakant
2020 ◽  
Vol 51 (7) ◽  
pp. 3007-3016 ◽  
Author(s):  
Pierluigi Carbonara ◽  
Sébastien Alfonso ◽  
Francesco Gai ◽  
Laura Gasco ◽  
Giovanni Palmegiano ◽  
...  

2016 ◽  
Vol 48 (4) ◽  
pp. 611-622 ◽  
Author(s):  
Mohammad Yooneszadeh Feshalami ◽  
Farokh Amiri ◽  
Mansour Nikpey ◽  
Seyed Abdolsaheb Mortazavizadeh ◽  
Enric Gisbert ◽  
...  

2015 ◽  
Vol 6 (1) ◽  
pp. 209-216
Author(s):  
A Ali ◽  
T Akter ◽  
M Das

An experiment was conducted to evaluate the growth, survival and production performances of pangus (Pangasianodon hypophthalmus) and shing (Heteropneustes fossilis) in which shing was used as guest to utilize the waste energy in pangus pond. The experiment was run for four months from July to October, 2008. Fishes were reared in pond no I, II, III with stocking density 150, 250 and 300 per decimal of pangus respectively. Shing was stocked only 10/decimal in pond-I. A complete artificial feed was used containing 23% protein. The weight gain (385.17±2.15g) of pangus was significantly higher in pond-I than that of pond-II (325.15±2.70g) and pond-III (319.30±2.90g). However, the production of pangus per ha were (28158.00±0.10kg) in pond-I, (34159.112±0.50 kg) in pond-II and (37856.208±0.60 kg) in pond-III. Total production of shing in pond-I was 240.57±1.60 kg/ha/yr. The survival rates (%) of pangus under three stocking densities were 98.66%, 85.06% and 80.00% respectively. The food conversion ratio (FCR) of pangasius pond I, II and III were 1.53, 1.81 and 1.84 respectively. The lowest FCR of 1.53 was found in pond-I. The net return of the pond I, II and III were BDT 273503.10, 117456.73 and 107906.60 per ha per year. The addition of shing into pangasius pond as guest invites economic benefit to the pangus culture.DOI: http://dx.doi.org/10.3329/jesnr.v6i1.22067 J. Environ. Sci. & Natural Resources, 6(1): 209-216 2013


2020 ◽  
Vol 67 (4) ◽  
Author(s):  
P. Nageswari ◽  
A. K. Verma ◽  
Subodh Gupta ◽  
A. Jeyakumari

A 90-days experiment was conducted to investigate the effects of biofloc produced with different carbon sources on growth performances, survival and body indices of Pangasianodon hypophthalmus fingerlings (average body weight: 6.4±0.05 g). The different carbon sources used in the experiment employing biofloc technology (BFT) were BFT-T (tapioca), BFT-S (sorghum), BFT-PM (pearl millet), BFT-FM (finger millet) and clear water with no addition of carbon source was treated as control. At the end of the experiment, significantly (p<0.05) higher weight gain (24.34±0.50 g), Specific growth rate, SGR (1.37±0.02% day-1); Feed efficiency ratio, FER (0.47±0.01); Protein efficiency ratio, PER (1.47±0.03) and lower Feed conversion ratio, FCR (2.12±0.03) were witnessed in the group where finger millet was used as a carbon source (BFTFM) and significantly lower responses were noticed in the control (CW). Results showed that there were no significantdifferences (p>0.05) in hepatosomatic index and viscerosomatic index of fish between the different experimental groups. During the termination of the experiment, no mortality was seen among the different experimental groups. Based on the results acquired from this study, finger millet could be used as an ideal carbon source for biofloc to augment the growth and productivity of P. hypophthalmus under farming.


2018 ◽  
Vol 17 (1) ◽  
pp. 53 ◽  
Author(s):  
Rio Yusufi Subhan ◽  
Eddy Supriyono ◽  
Widanarni, Widanarni ◽  
Daniel Djokosetiyanto

<p align="center"><strong>ABSTRACT</strong></p><p>The aim of this research was to determine optimum stocking density for growing-out of spiny lobster <em>Panulirus</em> sp. in controlled tanks that conducted for 30 days. The experimental spiny lobsters have the initial average weight of 130.39 ± 0.32 g and initial average total length of 140.70 ± 0.06 mm. This study used completely randomized design with three different stocking densities (KT<sub>10</sub>: 10 ind/m<sup>3</sup>; KT<sub>18</sub>: 18 ind/m<sup>3</sup>; and KT<sub>26</sub>: 26 ind/m<sup>3</sup>) and two replications. The parameters observed in this study included water quality (temperature, pH, salinity, dissolved oxygen, and total ammonia nitrogen), physiological responses (total haemocyte count, haemolymph glucose, and frequency of molt), and production performances, such as growth, specific growth rate, feed conversion ratio, and survival rate. The results showed that the spiny lobster could be reared in high stocking density in controlled tanks. Water quality during the study in each treatment was; temperature 26.56–28.65<sup>o</sup>C, salinity 29.7–33.6 g/L, pH 7.5–8.5, dissolved oxygen 6.15–6.58 mg/L, and total ammonia nitrogen 0.11–0.34 mg/L. The best stocking densities for spiny lobster was 18 ind/m<sup>3</sup> (KT<sub>18</sub>) with 2.5‒3.5×10<sup>6</sup>cells/mL total haemocyte counts, 24.6‒28.3 mg/dL haemolymph glucose, and 38.37 ± 3.20% frequency of molt. The final average body weight and length were 145.06 ± 0.42 g and 142.77 ± 0.19 mm, respectively. The survival rate reached 86.11 ± 3.92% with a specific growth rate 0.35 ± 0.01%/day, and feed conversion ratio 7.87 ± 0.31.</p><p>Keywords: high stocking density, <em>Panulirus</em> sp., physiological responses, productivity.<strong></strong></p><p><strong> </strong></p><p><strong> </strong></p><p align="center"><strong>ABSTRAK</strong></p><p>Tujuan dari penelitian ini adalah untuk menentukan kepadatan terbaik dalam pembesaran lobster laut <em>Panulirus </em>sp. yang dipelihara dalam bak terkontrol selama 30 hari. Lobster laut yang digunakan pada awal penelitian memiliki bobot 130,39 ± 0,32 g dan panjang total 140,70 ± 0,06 mm. Penelitian dilakukan menggunakan rancangan acak lengkap dengan tiga perlakuan kepadatan berbeda, yaitu: 10 ekor/m<sup>3</sup>(KT<sub>10</sub>), 18 ekor/m<sup>3</sup>(KT<sub>18</sub>), dan 26 ekor/m<sup>3</sup>(KT<sub>26</sub>) dan dua ulangan. Parameter uji yang diamati dalam penelitian ini meliputi kualitas air (suhu, salinitas, pH, DO, dan TAN), respons fisiologis (total hemosit/THC, glukosa hemolim, dan frekuensi pergantian kulit), dan kinerja produksi meliputi pertumbuhan, laju pertumbuhan spesifik, rasio konversi pakan, dan tingkat kelangsungan hidup. Hasil penelitian menunjukkan bahwa lobster laut dapat dibesarkan dengan kepadatan tinggi dalam bak terkontrol. Pengukuran nilai kualitas air pada setiap perlakuan selama pemeliharaan adalah suhu berkisar 26,56–28,65<sup>o</sup>C, salinitas 29,7–33,6 g/L, pH 7,5–8,5, DO antara 6,15–6,58 mg/L dan TAN antara 0,11–034 mg/L. Perlakuan terbaik selama penelitian adalah dengan kepadatan 18 ekor/m<sup>3 </sup>(KT<sub>18</sub>) dengan nilai THC berkisar antara 2,5–3,5×10<sup>6  </sup>sel/mL, glukosa hemolim 24,6–28,3 mg/dL,dan frekuensi pergantian kulit<em> </em>38,37±3,20%. Bobot dan panjang lobster akhir rata-rata pada perlakuan tersebut masing-masing mencapai 145,06 ± 0,42 g, dan 142,77 ± 0,19 mm. Tingkat kelangsungan hidup mencapai 86,11 ± 3,92% dengan laju pertumbuhan spesifik 0,35 ± 0,01%/hari dan rasio konversi pakan selama penelitian adalah 7,87 ± 0,31.</p><p>Kata kunci: padat pemeliharaan, <em>Panulirus </em>sp., produktivitas, respons fisiologis.</p><p> </p><p> </p>


Author(s):  
Monica Anastasya Sinaga ◽  
Yuli Andriani ◽  
Zahidah Hasan ◽  
Herman Hamdani ◽  
Ujang Subhan

The research aims to determine the best stocking density in the maintenance of Siamese catfish seedlings based on the influence exerted on the survival of Siamese catfish seeds and improving water quality in the recirculation system. This research was conducted at the Green House Ciparanje FPIK Unpad Jatinangor in August 2019. Maintenance activities are carried out in a 70x70x70 cm fiber equipped with a recirculation system and filled with 150 L of water per fiber. The study was conducted with four stocking solid treatments as follows 375 fry/fiber (treatment A); 450 fry/fiber (treatment B); 525 fry/fiber (treatment C); and 600 fry/fiber (treatment D). Siamese catfish fry is 1 inch in size with an average weight of 0.307 grams. The parameters observed were the survival of Siamese catfish fry and water quality. Water quality measurements include temperature, degree of acidity (pH), and ammonia (NH3). Water quality testing was carried out at the Laboratory of Aquatic Resources, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. During the study, there was no exchange of water or siphon. The method used in this research was analyzed descriptively and compared the results of survival rate fish and water quality parameters toward the Indonesian National Standard (SNI). The results showed that the best stocking density was 600 fry/fiber with a survival rate of 100% Siamese catfish and the ammonia value at the beginning of maintenance was 0.140 mg/L and the end of maintenance decreased to 0.137 mg/L.


2020 ◽  
Vol 20 (3) ◽  
pp. 271
Author(s):  
Yuke Eliyani ◽  
Iin Siti Djunaidah ◽  
Sujono Sujono

Although recirculation is a cultivation system that has been tried in various commodities, but the effectiveness of this system to the growth and survival of catfish juvenile has not been done. This study aims to determine the effective-ness of recirculation system on growth performance and survival rate of catfish juvenile (Pangasianodon hypophthal-mus). The research was conducted from 11 October to 30 November 2019 at hatchery unit Department of Fisheries Extension, Jakarta Technical University of Fisheries. This study used experimental method with 3 treatments, namely Control (K: 100% Bioball + Bacillus sp.), Treatment 1 (P1: 50% Bioball + 25% zeolite + 25% resin + Bacillus sp.) and Treatment 2 (P2: Bioball 25 % + zeolit 50% + resin 25% + Bacteria Bacillus sp.). The catfish used in this study was measured 0.08 + 0.02 g. Ind.-1. The fish were kept in a concrete tub of 100 cm x 150 cm x 70 cm with water volume of 750 liters tub-1. Stocking density of fish was 5 fish liters-1. Fish juveniles were fed with commercial feed with a dose of 3% of fish biomass with frequency of 3 times a day-1. Observation fish growth and water sampling for monitoring of the abundance of nitrogen-decomposing bacteria and water quality were carried out every 15 days. The results showed that the highest growth weight of catfish seedlings was found in treatment P1 (0.447±0.142b) compared with K (0.377±0.047a) and P2 (0.363±0.057a) treatment. The values of survival rate for K, P1 and P2 treatments were 51±8, 54±4 and 52±8, respectively. This result implies that no significant difference in the survival rates in all treatments.


2020 ◽  
Vol 20 (2) ◽  
pp. 143
Author(s):  
Henny Syawal ◽  
Irwan Effendi ◽  
Ronal Kurniawan

Striped catfish Pangasianodon hypophthalmus (Sauvage, 1878) has a high economic value and relatively fast growth, so that optimum stocking density and supplement of natural ingredients, such as Curcuma domestica Val., Kaempferia galanga Linn., and Curcuma xanthorriza Robx. can increase growth and immunity. This study aimed to obtain the optimum stocking density and herbal supplement dosage in feed to increase the growth and survival rates of striped catfish. An experimental method by applying factorial design was used, i.e. the dose and stocking density factors. The dosage of herbal supplements used were 100 mL kg-1 feed (D1), 200 mL kg-1 (D2) and 300 mL kg-1 (D3). Stocking density used was 50 m-3 (P1) and 75 m-3 (P2). The fish used were 8.5±0.5 cm long and weighed 7.5±0.3 g, kept in floating cages of 1 m x 1.5 m x 1 m. Fish maintenance was carried out for 60 days with feeding frequency of three times a day, as much as 10% of body weight. The results showed that the treatment of 200 mL kg-1 dosage and 75 m-3 stocking densities was the best treatment. This treatment showed that specific growth rate, absolute weight, absolute length and feed efficiency were 4.86%, 119.07 g, 15.45 cm, 82.93%, respectively. A supplement dose of 200 mL kg-1 in feed and stocking densities of 75 m-3 could increase growth rates, survival, and feed utilization efficiency of striped catfish.


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