scholarly journals Influence of stocking density on water quality and growth performance of white leg shrimp (Litopenaeus vannamei) reared in fiberglass tanks, without water exchange

2019 ◽  
Vol 18 (06) ◽  
pp. 14-22
Author(s):  
Tu P. C. Nguyen
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Growth Performance ◽  
Linear Relationship ◽  
Litopenaeus Vannamei ◽  
Water Exchange ◽  
Stocking Density ◽  
Quality Parameters ◽  
Final Weight ◽  
Ad Libitum

The present study evaluated the effects of stocking density on water quality parameters, growth performance and survival rate of white leg shrimp Litopenaeus vannamei, reared in fiberglass tanks, without water exchange. Three stocking densities (50, 100 and 200 shrimp/m2) were tested. Each treatment consisted of three replicates fiberglass tanks (500 L). The shrimp were fed ad libitum four times per day with a commercial pellet (40-42% protein). After an 8-week trial, concentrations of nutrients in the culture tanks showed an increasing linear relationship with increasing stocking density. The growth performance of shrimp in low stocking densities was significantly greater than that in high stocking densities. The results from this study demonstrate that with increasing the stocking density the production of shrimp increased but in a low final weight and survival compared to low stocking density.

scholarly journals Efficacy and suitability of whole wheat flour on the growth and survival of Rohu (Labeo rohita)

2019 ◽  
Vol 6 (2) ◽  
pp. 345-352
Author(s):  
Shovon Sarker ◽  
Md Fazle Rohani ◽  
Md Shafiqur Rahman ◽  
Md Sazzad Hossain
Keyword(s):  
Weight Gain ◽  
Survival Rate ◽  
Growth Performance ◽  
Wheat Flour ◽  
Labeo Rohita ◽  
Stocking Density ◽  
Quality Parameters ◽  
Whole Wheat Flour ◽  
Growth And Survival ◽  
Whole Wheat

The efficacy and suitability of dietary whole wheat flour supplementation was evaluated on the growth performance and survival of rohu (Labeo rohita). The study was conducted in 12 experimental aquaria at the Wet Laboratory, Department of Aquaculture, Bangladesh Agricultural University, Mymensingh. A total of 180 fingerlings of mean initial weight of 1.744±00 g were stocked at the same stocking density (268 fingerlings/m3). Four different treatments (T1, T2, T3 and T4) each with three replications were performed having different level of whole wheat flour such as 0% whole wheat flour (T1), 5% whole wheat flour (T2), 10% whole wheat flour (T3) and 15% whole wheat flour (T4). Feeds were supplied at 5% body weight twice daily in the morning at 9.00 am and in the afternoon at 5.00 pm throughout the study period. The rations were adjusted every week when new weights of the fish for various experimental aquariums were determined. At the end of the 63 days study period, the growth performance parameters such as mean final weight (g), weight gain (g), percent weight gain (%), specific growth rate (%/day) and the best feed utilization in terms of food conversion ratio were found highest at treatment 4 where fishes were fed with inclusion of 15% whole wheat flour and lowest was found at treatment 1 (fed with inclusion of 0% whole wheat flour). Water quality parameters were within the acceptable range and survival rate was found 100% in all treatment. Therefore, it can be concluded that treatment 4 (highest growth performance and survival rate of L. rohita with supplementation of 15% whole wheat flour containing diet) can be chosen by fish farmers for commercial culture of this species. Res. Agric., Livest. Fish.6(2): 345-352, August 2019

scholarly journals Growth and survival rate vannamei shrimp (Litopenaeus vannamei) in various doses of fertilizer and density

2018 ◽  
Vol 2 (2) ◽  
pp. 53 ◽  
Author(s):  
Abdul Rakhfid ◽  
Udin Mauga
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Litopenaeus Vannamei ◽  
Stocking Density ◽  
Shrimp Farming ◽  
Experimental Unit ◽  
Random Group ◽  
Factor B ◽  
Growth And Survival ◽  
Density Factor

Vannamei shrimp (Litopenaeus vannamei) is a commodity that is expected to not only increase options for farmers but also sustain the rise of shrimp farming business in Indonesia. One important factor in shrimp farming is the availability of feed. In addition to the availability of natural feed during cultivation, stocking density is also very influential in the survival rate and growth of shrimp vannamei. The research was conducted in September-December 2016 farms Bonea Village District of Lasalepa Muna with Test the different dosages with different stocking density. The study used a Random Group Factorial, which is based fertilization (Factor A) with three levels and stocking density (Factor B) as many as three levels, each with three replications so that all 27 units experimental unit. The results showed that the combination of factors dose of 0.7 g of urea + 0.9 g TSP and stocking density factor of 10 individuals per container provides prawn post larvae growth vannamei most excellent and a combination of factors Urea fertilizer dosage of 0.9 g TSP + 1.1 g and stocking density factor of 20 individuals per container provides a survival rate of post larvae vannamei most good. Water quality media for research in the range that is optimal for the growth and survival of post larvae vannamei.

scholarly journals Effect of Stocking Density on Growth Performance and the Survival of Golden Mahseer, Tor putitora (Hamilton) Fry

2021 ◽  
pp. 47-54
Author(s):  
Md. Golam Sajed Riar ◽  
Nur- A Raushon ◽  
Sumit Kumer Paul
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Crude Protein ◽  
Stocking Density ◽  
Experimental Period ◽  
Quality Parameters ◽  
The Other ◽  
Water Quality Parameters ◽  
Daily Weight Gain ◽  
Tor Putitora

Growth performance and survival of Tor putitora fry under different stocking densities were evaluated fry rearing system. The experimental period was 10 weeks from 31 December to 10 March 2019. The experiment was carried out in nine earthen ponds of 0.04 ha each under three treatments with three replications.  Thirty days old fry were stocked at the rate of 1.0X105/ha was designated as treatment- 1 (T1), 1.5X105/ha` as treatment- 2 (T2) and 2.0X105/ha as treatment- 3 (T3), respectively. Fry were fed with commercially available nursery feed containing 32% crude protein. It was observed that, lower stocking density showed highest daily weight gain in T1 (growth 0.066 ± 0.006 g/day) compared with higher stocking density in T2 (growth 0.044 ± 0.004 g/day) and T3 (growth 0.024 ± 0.003 g/day), respectively. It is also noticed that, the lower stocking showed the highest survival rate (79.66 ± 4.34 %) than the other two treatments (66.97±3.67 and 54.67± 3.12 %). The values of different water quality parameters were within the optimum ranges for the rearing of carp fry. Water quality parameters did not show significant variations in the experimental ponds under different stocking densities. Among these three stocking densities lower stocking density (T1) showed the best result compare with the other two higher stocking densities.

scholarly journals Effects of stocking density on growth performance, survival rate and economic efficiency of Asian seabass (Lates calcarifer) cultured in earthen pond

2020 ◽  
Vol 19 (05) ◽  
pp. 65-70
Author(s):  
Nhan T. Dinh
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Growth Performance ◽  
Economic Efficiency ◽  
Quality Parameters ◽  
Fish Growth ◽  
Water Quality Parameters ◽  
Lates Calcarifer ◽  
Asian Seabass ◽  
Significant Difference

This trial aimed to evaluate effects of stocking densities of 1-5 fish/m2 on growth performance, survival rate and economic efficiency of Asian seabass (Lates calcarifer) in earthen ponds. Fish with an initial length of 90.7 ± 0.1 mm and weight of 20.8 ± 0.1 g/fish and ponds with 600 m2 each and 1.5 m depth were used for this study. Experiment was designed with three treatments, including different stocking densities of 1, 3 and 5 fish/m2. The fish was fed with pellete feed containing 43 - 44% crude protein. Water quality parameters including temperature, dissolved oxygen, pH, salinity, transparency and ammonia concentration were measured once a week. Fish were sampled every 30-day intervals for length and weight measurement then for their growth estimation. Costs were recorded for economic efficiency estimation. Results showed that the water quality parameters were in suitable ranges for growth and development of Asian seabass. The final average length and weight of density 1 fish/m2 was significantly higher than those at 3 and 5 fish/m2 (P < 0.05). However, there was no significant difference on the fish growth in terms of daily length and weight gain, as well as survival rate and feed conversion ratio between different stocking densities. Asian seabass culture at 3 and 5 fish/m2 resulted in a higher profit compared to at 1 fish/m2. The highest economic efficiency in terms of area pond was showed at 5 fish/m2 treatment.

scholarly journals Effect of Different Stocking Densities on the Growth and Survival Rate of Tilapia (Oreochromis niloticus) Seeds in Batur Lake Floating Net Cages

2021 ◽  
Vol 5 (2) ◽  
pp. 50
Author(s):  
Hikmah Nurazizah ◽  
I Wayan Arthana ◽  
Gde Raka Anggara Kartika
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Design Method ◽  
Stocking Density ◽  
Fish Farming ◽  
Quality Parameters ◽  
Feed Conversion ◽  
Growth And Survival ◽  
Randomized Design ◽  
Net Cages

Stocking density is an important factor in cultivation, it can save land use, and increase the efficiency of fish farming. The purpose of this research was to determine the different density information on tilapia seeds measuring 2-3 cm as an alternative to using tilapia (O. niloticus) seeds 7-9 cm in size so that they can be developed in Batur Lake. The research was conducted in January - March 2020 in the floating net cages in Trunyan Kintamani village, Bangli, Bali. The research used a completely randomized design method with three treatments and three repetitions. The Tilapia seeds used are 2-3 cm with different stocking densities, 100 ind/m3, 150 ind/m3, and 200 ind/m3. The parameters observed were SGR (Specific Growth Rate), absolute growth, SR (Survival Rate), FCR (Feed Conversion Ratio), and water quality including temperature, DO, pH, TDS. The results of this study indicated that stocking density did not have a significant effect on the growth and survival rate of tilapia seeds, because the temperature was too cold so that the tilapia seeds failed to adapt properly at the beginning of stocking and the physiological conditions of the fish were disturbed so that the fish experienced stress and went to died. Water quality parameters measured include temperature with a range value of 25.86-25.880C, pH with a range value of 9.08-9.13, DO (Dissolved oxygen) with a range value of 7.9-8 mg/L, and TDS (Dissolved solids) with a range value of 1040.25-1041.58 mg/L.

scholarly journals The effectiveness of filters on catfish Clarias gariepinus fry performance in the aquaponic system

2021 ◽  
Vol 20 (2) ◽  
pp. 101-114
Author(s):  
Yuli Andriani ◽  
Zahidah Hasan ◽  
Irfan Zidni ◽  
Isni Nurruhwati ◽  
Iskandar Iskandar ◽  
...  
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Growth Performance ◽  
Clarias Gariepinus ◽  
Stocking Density ◽  
Water Circulation ◽  
Filter Medium ◽  
Feed Conversion ◽  
Water Spinach ◽  
Absolute Growth

This study aimed to determine the effectiveness of filters on the growth performances of catfish fry (Clarias gariepinus) in the aquaponic system. The study was conducted in the Ciparanje Green House, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, Jatinangor. A completely randomized design with four treatments and three replications was applied, namely treatment A: Water circulation using bioball filter medium, B: Water circulation using water spinach filter medium, C: Water circulation using bioball and water spinach filter media, and D: Water circulation using sponge filter medium (control). The container used for the maintenance was a fiber tank at 70 cm × 70 cm × 70 cm size filled with 257 L water and a stocking density of 15 fish/fiber. The parameters observed were survival rate, growth, feed conversion, and water quality. The results showed that the use of biological filter using water spinach produced the best growth performance of catfish. The best survival rate was also obtained by using water spinach filter (100%) with the absolute growth of 98.32 ± 15.6 g. The water quality an aquaponic system with water spinach filter supported the growth performance of catfish fry.   Keywords: absolute growth, aquaponic, Clarias gariepinus, filters.   ABSTRAK   Penelitian ini bertujuan untuk menguji efektivitas filter terhadap performa pertumbuhan benih ikan lele Clarias gariepinus dalam sistem akuaponik. Penelitian dilakukan di Laboratorium Rumah Kaca Ciparanje, Fakultas Perikanan dan Ilmu Kelautan, Universitas Padjadjaran, Jatinangor. Metode penelitian adalah rancangan acak lengkap dengan empat perlakuan dan tiga ulangan, yaitu perlakuan A: sirkulasi menggunakan media filter bioball, B: Sirkulasi menggunakan media filter bayam air, C: Sirkulasi menggunakan media filter bioball dan tanaman kangkung, dan    D : Sirkulasi menggunakan media spons (kontrol). Wadah yang digunakan untuk pemeliharaan bak fiber dengan ukuran 70 cm × 70 cm × 70 cm diisi dengan air sebanyak 257 L dengan padat tebar 15 ekor / bak. Parameter yang diamati adalah kelangsungan hidup, pertumbuhan ikan, konversi pakan dan kualitas air. Hasil penelitian menunjukkan bahwa penggunaan filter biologis menggunakan tanaman kangkung menghasilkan  performa pertumbuhan ikan lele yang terbaik. Tingkat kelangsungan hidup terbaik juga ditunjukkan oleh pelakuran dengan filter berupa tanaman kankung (100%) dan pertumbuhan mutlak 98,32 ± 15,6 g. Kualitas air sistem akuaponik dengan filter tanaman kangkung mendukung performa pertumbuhan benih ikan lele. 

scholarly journals The Effect of Stocking Density on Survival Rate of Siamese Catfish (Pangasianodon hypophthalmus) Fry in Recirculation System

2020 ◽  
pp. 8-14
Author(s):  
Monica Anastasya Sinaga ◽  
Yuli Andriani ◽  
Zahidah Hasan ◽  
Herman Hamdani ◽  
Ujang Subhan
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Stocking Density ◽  
Quality Parameters ◽  
National Standard ◽  
Average Weight ◽  
Pangasianodon Hypophthalmus ◽  
Fiber Treatment ◽  
Recirculation System ◽  
Quality Water

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.

scholarly journals Studi Kegiatan Budidaya Pembesaran Udang Vaname (Litopenaeus vannamei) dengan Penerapan Sistem Pemeliharaan Berbeda [Study of Vaname Shrimp Culture (Litopenaeus vannamei) in Different Rearing System]

2017 ◽  
Vol 9 (1) ◽  
pp. 1 ◽  
Author(s):  
Sulastri Arsad ◽  
Ahmad Afandy ◽  
Atika P Purwadhi ◽  
Betrina Maya V ◽  
Dhira K Saputra ◽  
...  
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Litopenaeus Vannamei ◽  
Research Result ◽  
Quality Parameters ◽  
Feed Consumption ◽  
Daily Growth ◽  
Shrimp Culture ◽  
Physical And Chemical ◽  
Good Presentation

                                                               AbstrakPenelitian ini bertujuan untuk melakukan monitoring kualitas air di tambak budidaya udang vaname, membandingkan efektivitas penerapan budidaya dengan sistem pemeliharaan berbeda pada tambak dan variasi pemberian pakan. Pada kegiatan ini, empat tambak budidaya digunakan sebagai tempat pembesaran udang vaname (Litopenaeus vannamei). Parameter yang diukur meliputi parameter fisika dan kimia yaitu suhu, kecerahan, pH, oksigen terlarut, salinitas, amonia, dan alkalinitas; sedangkan performa pertumbuhan organisme budidaya dilihat dengan cara menghitung tingkat kelulushidupan (survival rate) udang pada akhir pemeliharaan, efisiensi konsumsi pakan melalui perhitungan FCR, dan laju pertumbuhan spesifik udang (SGR) dengan menghitung ABW (Average Body weight) dan ADG (Average Daily Growth) udang. Hasil penelitian menunjukan bahwa secara keseluruhan kisaran kualitas air yang diperoleh masih dalam keadaan layak untuk kegiatan budidaya dan bahkan Tambak 3 dan 4 menunjukkan kisaran optimum untuk kualitas air budidaya, sedangkan untuk parameter performa pertumbuhan, pada Tambak 3 dan 4 diperoleh nilai SR lebih dari 80 %, dan Tambak 1 dan 2 mempunyai SR di bawah 70 %. Selain itu, nilai FCR berada di bawah 1.7 pada tambak 3 dan 4, sedangkan pada Tambak 1 dan 2 nilainya lebih dari 1.7. Terakhir untuk nilai SGR, Tambak 3 dan 4 juga menunjukkan presentasi yang bagus jika dibandingkan Tambak 1 dan 2. Secara komprehensif, dapat disimpulkan bahwa penerapan sistem pemeliharaan dengan menggunakan sistem flok pada Tambak 3 dan 4 meningkatkan performa kualitas air dan hasil produksi dibandingkan pada Tambak 1 dan 2.                                                                 AbstractThe aim of this study was to monitor water quality in vaname culture pond and compare the application of different rearing culture system and feeding variations. Four ponds culture were used as vaname (Litopenaeus vannamei) growth place. Measured parameters include physical and chemical factors such as temperature,brightness, pH, DO, salinity, ammonia, and alkalinity, while growth shrimp performance showed by SGR, SR and FCR. The research result of the water quality parameters show an adequate range values for all of the ponds and good enough for shrimp growth, and especially an optimum range value presented in pond three and four. Survival rate (SR) both pond 3 and 4 exhibit a good presentation that is more than 80%, whereas pond 1 and 2 were just less than 70% of SR value. The specific growth rate (SGR) presents also a good presentation in Pond 3 and 4 rather than pond 1 and 2. Based on the feed consumption, pond 1 and 2 show high FCR that is more than 1.7 while pond 3 and 4 present smaller FCR value which is less than 1.7. Finally, it could be concluded that application of floc in culture rearing system of pond 3 and 4 increase water quality and production value than pond 1 and 2.

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