scholarly journals Production performance and financial feasibility analysis of farming catfish (clarias gariepinus) utilizing water exchange system, aquaponic, and biofloc technology

Author(s):  
Iis Diatin ◽  
Dadang Shafruddin ◽  
Nurul Hude ◽  
Mar'atus Sholihah ◽  
Ilmi Mutsmir
2016 ◽  
Vol 78 (4-2) ◽  
Author(s):  
Sri Hastuti ◽  
Subandiyono Subandiyono

The biofloc technology can control water quality under negligible water exchange. The aim of this study was to evaluate the  effects of stocking density on production and blood performance of catfish (Clarias gariepinus [Burchell, 1822]). The catfish were reared in biofloc system (heterotrophic bacteria and addition of sugar for a period of 10 wk and used three levels of density i.e. (500, 1 000, and 1 500) fish per m2. The production increased with the increasing of stocking density, relative growth rate decreased with the increasing of that. The stocking density of 1 500 fish per m2 on the biofloc technology can support maximum catfish production, health and proper water quality.


2020 ◽  
Vol 9 (3) ◽  
pp. 274
Author(s):  
Rifqah Pratiwi ◽  
Kurniawan Wahyu Hidayat ◽  
Sumitro Sumitro

Biofloc technology (BFT) is one of the most developed aquaculture technologies, which aims to improve the efficiency of feed use by providing nutrients for flocs to be used by fish as a supplementary feed. Also, BFT serves to improve water quality through the breaking down of fish waste materials assisted by heterotrophic bacteria. Bacteria used in this study were Bacillus sp. as probiotics in BFT. This study aimed to examine the production performance of catfish maintained with a biofloc system on an industrial scale, without experimental design. The average weight of catfish when stocking was 5.9 ± 0.0 g/fish with a density of 7000 fish in 9 unit circular ponds. This studies showed after 78 days of culture, bodyweight gain about 28.6 g/fish to 41.7 g/fish, highest specific growth rate was K2 (2.4 ± 0.2% BW/day), the highest survival rate K2 (98.87 ± 6.64% BW/day), highest grow rate K1 (41.7 ± 5.8 g) and the best FCR K9 (0.95 ± 0.11).


2012 ◽  
Vol 44 (10) ◽  
pp. 1578-1588 ◽  
Author(s):  
Ramamoorthy Saraswathy ◽  
Moturi Muralidhar ◽  
Muniyandi Kailasam ◽  
Pitchaiyappan Ravichandran ◽  
Baijnatha Prasad Gupta ◽  
...  

2020 ◽  
Vol 20 (2) ◽  
pp. 105
Author(s):  
Thoy Batun Citra Rahmadani ◽  
Dedi Jusadi ◽  
Mia Setiawati ◽  
Yuni Puji Hastuti

The objective of this research was to evaluate the supplementation of turmeric in the diet on antioxidant status and growth performance of African catfish (Clarias gariepinus) in zero water exchange condition. This study used a completely randomized design with 4 treatments and 4 replications. Each treatment consisted of feed supplementation turmeric at dosage of 0; 2.5; 5 or 7.5 g kg-1 diet. One hundred catfish juvenile (5.95±0.05 g) were stocked in intermediate bulk container (IBC) tank (1×1×1 m3) and rearing in zero water exchange condition for 60 days. Catfish were fed at satiation twice a day, in the morning and evening. The results showed that an increase in antioxidant content in catfish fed with the addition of turmeric, which simultaneously also reduced the percentage of liver damage. The parameters of liver damage can be seen from several parameters i.e. pale liver, droplet fat and fat content in the addition of turmeric treatment is lower than without the addition of turmeric. However, catfish fed with the addition of turmeric did not show significant results in terms of growth performances.


Author(s):  
Sahrim Sahrim ◽  
La Rianda ◽  
Dhian Herdhiansyah

This study aims to determine the manufacturing process and the financial feasibility of pile processing. This research was conducted in Kulisusu District, North Buton Regency. The population in this study were all business owners of pile processing. The determination of the sample is done by purposive (direct appointment) because the pedicab processing business actor only consists of two business units. Samples taken are as many as two business units consisting of all existing populations. The variables in this study are raw materials, supporting materials, labor and equipment. The results showed a 12%/yr NPV calculation in 1%/month. At a discount factor of 1% which is equal to Rp 14.546.944. BCR of 1,16 (>1), IRR of 5% (>1%) and return on investment by calculating PP for 9,92 months, BEP units/production of 288 packages and BEP for Rp 2.486. BEP analysis had reached the break-even point that was determined, namely 1. From the five criteria used, it was indicated that the pile processing in the Kulisusu sub-district was feasible to be developed.


2020 ◽  
pp. 1-11
Author(s):  
Nur Adlin ◽  
Masashi Hatamoto ◽  
Shinichi Yamazaki ◽  
Takahiro Watari ◽  
Takashi Yamaguchi

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