Survival and metamorphosis of giant river prawn Macrobrachium rosenbergii larvae in a commercial recirculation system with artificial seawater

2021 ◽  
Author(s):  
María Cristina Miglio ◽  
Braulio Zaga ◽  
Jose Carlos Gastelu ◽  
William Severi ◽  
Silvio Peixoto
Keyword(s):  
Macrobrachium Rosenbergii ◽  
Artificial Seawater ◽  
Recirculation System

scholarly journals Penambahan Kalsium Tulang Ikan Kambing-kambing (Abalistes stellaris) pada pakan untuk keberhasilan gastrolisasi udang galah (Macrobrachium rosenbergii)

2019 ◽  
Vol 6 (2) ◽  
pp. 69
Author(s):  
Ade Rizki Restari ◽  
Lia Handayani ◽  
Nurhayati Nurhayati
Keyword(s):  
Macrobrachium Rosenbergii ◽  
Fish Bone ◽  
Fish Bones ◽  
Weight Growth ◽  
Molting Process ◽  
Randomized Design ◽  
Shrimp Shell ◽  
Recirculation System ◽  
Bone Calcium ◽  
Completely Randomized Design

AbstrakUdang galah mengalami pertumbuhan setelah molting, untuk pengerasan kulit udang membutuhkan kalsium. Tulang ikan kambing-kambing mengandung banyak kalsium sehingga dapat mempercepat proses pengerasan kulit pada udang. Penelitian ini dilakukan untuk mengetahui penambahan kalsium tulang ikan kambing-kambing dapat meningkatkan pertumbuhan dan frekuensi molting udang galah. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan penambahan resirkulasi sebagai media dalam pemeliharaan kualitas air yang perlakuannya sebanyak empat perlakuan dan tiga ulangan yang terdiri dari A (0% CaO), B(1% CaO), C (2% CaO) dan D (3% CaO). Hasil penelitian menunjukkan bahwa penambahan kalsium berpengaruh nyata terhadap kelangsungan hidup udang galah yaitu A 90%, B 95%, C 90% dan D 97.5% dan pertumbuhan berat harian pada masing-masing perlakuan yaitu A 1.76 g, B 1.72 g, C 1.60 g, dan D 1.86. Pertumbuhan panjang harian yaitu A 1.23 cm, B 1.26 cm, C 1.23 cm dan D 1.06 cm dengan frekuensi molting udang galah tertinggi yaitu C 0.75 kali/ekor, D 0.63 kali/ekor, A 0.59 kali/ekor dan yang terendah pada perlakuan B 0.45 kali/ekor.Kata kunci: kalsium; kelangsungan hidup; pertumbuhan; udang galahAbstractGiant shrimp growth after the molting process, for hardening shrimp shell requires calcium. Kambing-kambing fish bones contains lots of calcium so that they do accelerate the process of hardening the shell-on shrimp. This study was conducted to detect addition of kambing-kambing fish bone calcium get increase the growth and the molting frequency of giant shrimp. This study used was Completely Randomized Design (CRD) with additions recirculation system as media a medium in maintaining water quality with four treatments and three replications consist is A (0% CaO), B (1% CaO), C (2% CaO) and dan D (3% CaO). The results showed that real participation in the survival of giant prawns, namely A 90%, B 95%, C 90% dan D 97.5% and daily weight growth in each treatment that is A 1.76 g, B 1.72 g, C 1.60 g, and D 1.86. Daily long growth that is A 1.23 cm, B 1.26 cm, C 1.23 cm and D 1.06 cm by means of molting frequency of giant shrimp has the highest of C 0.75 times/tail, D 0.63 times/individual, A 0.59 times/ individual and the lowest is by treatment B 0.45 times/ individual.Keywords: calcium; survival rate; growth; giant prawn

scholarly journals Water quality and growth of juvenile specimens in giant freshwater prawn Macrobrachium rosenbergii (De Man, 1879) cultures applied in recirculation and biofloc systems

2021 ◽  
Vol 9 (5) ◽  
pp. 218-227
Author(s):  
Nallely Cruz ◽  
Anselmo Miranda Baeza ◽  
Eduardo Alfredo Zarza Meza
Keyword(s):  
Water Quality ◽  
Macrobrachium Rosenbergii ◽  
Freshwater Prawn ◽  
White Shrimp ◽  
Giant Freshwater Prawn ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Recirculation System ◽  
Randomized Experimental Design ◽  
Natural Photoperiod ◽  
De Man

Biofloc research commenced in the late 1970s, with the white shrimp Litopenaeus vannamei and the Nile tilapia Oreochromis niloticus the most commonly studied species. The present study evaluated M. rosenbergii cultures in recirculation and biofloc systems by comparing the water quality and productive performance of juveniles in both systems. The study was based on a simple randomized experimental design with a recirculation and biofloc treatment, each conducted in triplicate. The initial length and weight of the organisms was 1.04 cm and 0.31 g (recirculation) and 1 cm and 0.30 g (biofloc), respectively, while the bioassay, which lasted nine weeks, was undertaken in a salinity of 5 ppm with a natural photoperiod (12:12). The present study monitored basic variables corresponding to the water, survival, growth (in weight), and the composition of the plankton.The basic variables of the water (temperature, salinity, and pH) were kept within the recommended range for the culture. Of the plankton observed in the biofloc, nematodes, rotifers, cyanobacteria, ciliates, heliozoa, and dinoflagellates predominated. The organisms grown in the recirculation system reached 5.35 cm in length and 1.28 g in weight, while those grown in the biofloc reached 5.18 cm and 2 g, with significant differences in individual weight observed. Survival in the recirculation and biofloc systems was 73% and 60%, respectively, with significant differences observed. It is concluded that, although the survival rate was higher in the recirculation system, the weight of individual organisms was higher in the biofloc treatment.

scholarly journals Polyculture of Giant Freshwater Prawn, Macrobrachium rosenbergii and Nilem Carp, Osteochilus hasselti Cultured in Recirculation System Using Biofiltration

2018 ◽  
Vol 47 ◽  
pp. 02005
Author(s):  
Eri Setiadi ◽  
Imam Taufik
Keyword(s):  
Water Quality ◽  
Macrobrachium Rosenbergii ◽  
Stocking Density ◽  
Biomass Productivity ◽  
Freshwater Prawn ◽  
Water Spinach ◽  
Giant Freshwater Prawn ◽  
Recirculation System

Giant Freshwater Prawn is one of the freshwater commodity which have an economy value where Nilem carp has also potentially to be cultured to produce fingerling size as a “baby fish”. The purpose of this experiment is to determine the optimal survival, growth, FCR, and productivity of Giant Freshwater Prawn and Nilem carp cultured on polyculture system and also biomass productivity of bio filter (snail, water spinach, and Cabomba). The different stocking density of Nilem carp as a treatments were as followed: A) 25 fish m-3 B) 50 fish m-3, and C) 75 fish m-3. Density of Giant Freshwater Prawn was 20 individuals m-3 for all treatments. The result showed that the optimal of survival, growth (length and weight), productivity and FCR for Giant Freshwater Prawn was found at density of 25 fish m-3 (A) than that of density 50 fish m-3 (B) and 75 fish m-3 (C) (P<0.05). The highest of biomass productivity of bio filter (snail, water spinach, and Cabomba) was found at density of 25 fish m-3 (A) than that of density of 50 fish m-3 (B) and 75 fish m-3 (P<0.05). Water quality such as DO, temperature and pH showed almost the same at all treatments.

scholarly journals Penambahan nanokalsium cangkang tiram (Crassostrea gigas) pada pakan dengan dosis berbeda terhadap pertumbuhan udang galah (Macrobachium rosenbergii)

2019 ◽  
Vol 6 (2) ◽  
pp. 80
Author(s):  
Nina Fitriana ◽  
Lia Handayani ◽  
Nurhayati Nurhayati
Keyword(s):  
Survival Rate ◽  
Experimental Design ◽  
Crassostrea Gigas ◽  
Macrobrachium Rosenbergii ◽  
Oyster Shell ◽  
Randomized Design ◽  
Commercial Feed ◽  
Recirculation System ◽  
Completely Randomized Design ◽  
Different Doses

AbstrakPenelitian ini bertujuan untuk mengetahui pengaruh Penambahan nanokalsium cangkang tiram (Crassostrea gigas) pada pakan dengan dosis berbeda terhadap pertumbuhan udang galah (macrobrachium rosenbergii). Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 ulangan, pada perlakuan A (pakan komersial tanpa penambahan CaO). Perlakuan B (pakan komersial dengan tambahan 1% CaO), perlakuan C (pakan komersial dengan penambahan 2% CaO), perlakuan D (pakan komersial dengan penambahan 3% CaO). Kemudian selama penelitian 2 bulan pada akuarium dilengkapi juga sistem resirkulasi. Hasil penelitian menunjukkan dengan penambahan nanokalsium sebanyak 2% berpengaruh nyata terhadap kelangsungan hidup Udang yaitu A 95.0%, B 95.0%, C 100% dan D 92.5%, dan pada frekuensi molting udang galah memiliki tingkat tertinggi yaitu A 0,64 kali/ekor, lalu diikuti oleh perlakuan B 0,63 kali/ekor, kemudian diikuti oleh perlakuan D yaitu 0,53 kali/ekor, dan yang terendah diikuti oleh perlakuan A 0,51 kali/ekor.Kata kunci: nanokalsium; kelangsungan hidup; pertumbuhan; udang galahAbstractThis study aims to determine the effect of the addition of oyster shell nano-calcium (Crassostrea gigas) at different doses on the growth of giant shrimp (Macrobrachium rosenbergii). The experimental design used was Completely Randomized Design (CRD) with four treatments and two replications, in treatment A (commercial food without CaO addition). Treatment B (commercial feed with additional CaO 1%), treatment C (commercial feed with the addition of 2% CaO), treatment D (commercial feed with an addition of 3%). Then for two months of research there was an aquarium equipped with a recirculation system. The results showed that with nano-calcium approvals of 2% real participation in the survival of giant prawns, namely A 95.0%, B 95.0%, C 100% and D 92,5 %. and the moulting frequency of giant shrimp has the highest level of C 0.64 times/individual, then followed by treatment B 0.63 times/individual, then followed by treatment D 0.53 times/individual, and the lowest was followed by treatment A 0.51 times/individual.Keywords: nano-calcium; survival rate; growth; giant prawn

SO SÁNH SỰ ĐA DẠNG DI TRUYỀN CỦA TÔM CÀNG XANH VIỆT NAM VÀ TRUNG QUỐC

2013 ◽  
Vol 75 (6) ◽  
Author(s):  
Nguyễn Thành Tâm ◽  
Phạm Thanh Liêm
Keyword(s):  
Macrobrachium Rosenbergii ◽  
Viet Nam

Trong những năm qua, sản lượng tôm càng xanh nuôi ngày càng giảm. Thêm vào đó, những năm gần đây tôm càng xanh Trung Quốc được nhập vào Việt Nam ngày càng nhiều. Để đánh giá sự khác biệt di truyền giữa hai quần đàn tôm càng xanh Việt Nam và Trung Quốc và làm cơ sở cho việc quản lý, bảo tồn nguồn gen tôm càng xanh tại Việt Nam. Nghiên cứu này đã so sánh sự đa dạng di truyền giữa tôm càng xanh Việt Nam và tôm càng xanh Trung Quốc. Sử dụng phương pháp Microsatellite và RAPD để kiểm tra sự khác biệt di truyền của hai quần đàn tôm càng xanh Việt Nam và Trung Quốc cùng với 6 cặp mồi Microsatellite và 5 mồi ngẫu nhiên RAPD. Kết quả cho thấy chỉ có 1 vệt băng cho tất cả 6 mồi Microsatellite giữa tôm càng xanh Việt Nam và Trung Quốc. Tuy nhiên, khi phân tích RAPD cho thấy có sự khác biệt di truyền giữa 2 quần đàn tôm. Trung bình là 14,9 alen (TCXTQ) và 12,9 alen (TCXVN). Trung bình dị hợp tử, giá trị đa dạng di truyền PIC lần lượt là 0,156; 0,84 – 0,88 (TCXTQ) và 0,179; 0,86 – 0,88 (TCXVN), chỉ số Shanmon là 0,242 (TCXTQ), 0,279 (TCXVN). Tôm càng xanh Trung Quốc trong nghiên cứu này có thể là loài Macrobrachium rosenbergii và đã trải qua quá trình thuần dưỡng lâu dài.

Features of system for water recirculation in thermal power plant ‘Morava’ on the right bank of River Velika Morava

2013 ◽  
Vol 8 (3-4) ◽  
pp. 342-349
Author(s):  
L. Andjelic ◽  
M. Pavlovic ◽  
B. Babovic
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Drainage System ◽  
Water Quantity ◽  
Hydraulic Transport ◽  
Productive Force ◽  
Recirculation System ◽  
Water Recirculation ◽  
The Right

The thermal power plant ‘Morava’, with a productive force of 125 MW, is located on the right bank of the River Velika Morava, near the city of Svilajnac, Serbia. This power plant uses coal for production. Ash and slag from the coal are burned and go to a landfill by hydraulic transport. The ratio of the liquid/solid mixture is 10:1. Towards the reduction of water quantity taken from the Velika Morava river for hydraulic transport, it's provided to build a water recirculation system for overflow and drainage water from landfill to power plant. In this paper, the results of the hydraulic study of water balance in landfill is shown. The goal of this study is to assess the water quantity in landfill, which can then be reused for hydraulic transport. For dimensioning of drainage system and overflow building on landfill, it was necessary to perform detailed analysis of rainfall and filtration throw landfill. With results of water quantity in drainage system, and overflow water, all parts of the recirculation system of water, from landfill to power plant, was performed. Also, in this paper are the data of hydraulic transport of mixture of water and ash/slag.

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