Biological performance of Asian catfish (Clarias batrachus) (Teleostei, Clariidae) cultured in recirculating aquaculture system
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2011, Vol 4, Issue 5
Abstract
The study was conducted to assess the biological performance of Asian catfish in RAS by using 4 tanks (3 culture tanks and 1 sedimentation tank) measuring 2 m x 1 m x 0.60 m with a volume of 900 liters and bio-filter as water purification unit. The numbers of catfish cultured in each tank were as many as 300 fish i each tank, with a size of 5-8 cm (Tank 1), 8-12 cm (Tank 2) and 12-15 cm (Tank 3), respectively. This study was conducted for 30 days (August-September 2010) by considering the water quality during experiment, indicates that the RAS are able to provide proper conditions for growth and survival of catfish with a survival rate more than 92% on all tank experiments with specific growth rate from 0.64 to 0.89% per day and feed conversion rate of about 0.18-0.27. The existence of the impurities from the fish waste directly influences water quality, but the decline of water quality still at a decent level for the culture of catfish. The ANOVA test to the biological performance and water quality showed that the difference in the size of fish in each tank has no significant influence between each other.
Authors and Affiliations
Rahmat Fadhil, Johari Endan, Farah Taip, Muhammad Bin Hj. Ja’afar
The effects of COX2-inhibitors (etoricoxib and etodolac) on growth rate and mortality in Nile tilapia (Oreochromis niloticus)
The non-steroidal anti inflammatory drugs represent one of the most commonly detected compounds in sewage treatment plant (STP) effluent and surface water with scarce information concerning possible ecotoxicological risk...
Errors in experimental design and statistical analysis of aquaculture diet evaluation studies induced by filtration systems.
While single factor diet studies appear to be of simple design, the space constraints in aquaculture caused by the need to filter the aqueous media often create constraints on the implementation of the experimental desig...
PCR detection of white spot syndrome virus (WSSV) from farmed Pacific white shrimp (Litopenaeus vannamei) in selected sites of the Philippine
Great losses caused by white spot syndrome virus (WSSV) in shrimp culture have been attributed to poor screening procedures in farms and the lack of sufficient access to specific pathogen free brood stock. Thus, early...
Influence of the protein quantity from combined fodder on the corporal development of guppy (Poecilia reticulata)
This paper aims to highlight the effects of various concentrations of protein premixtures on the growth in length and weight of adult specimens of ornamental fish Poecilia reticulata, bred in captivity. Of this considera...
Nutrient reusing capacity of a combined pond aquaculture system.
The investigated combined intensive-extensive system (IES) as a production system operated in a close interaction of the intensive and extensive production units. The key element of the proper operation was the treatment...