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Compensatory growth and feed restriction in marine shrimp production, with emphasis on biofloc technology

In Brazil, studies and production of penaeid shrimp in a biofloc technology (BFT) system are recent, but the results point to a promising future. Research with feed restriction inducing compensatory growth in shrimps has been shown to be a technique that allows a saving of around 25% in the use of f...

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Published in:Aquaculture international 2018-02, Vol.26 (1), p.203-212
Main Authors: Maciel, Julio Cesar, Francisco, Claire Juliana, Miranda-Filho, Kleber Campos
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description In Brazil, studies and production of penaeid shrimp in a biofloc technology (BFT) system are recent, but the results point to a promising future. Research with feed restriction inducing compensatory growth in shrimps has been shown to be a technique that allows a saving of around 25% in the use of feed for shrimp production. It also allows the reduction of costs with salaries and adapts shrimp farming to the world demand for environmentally friendly production, with the reduction of nitrogen and phosphorus levels in its effluents, as well as lower water use in shrimp farming. In crustaceans, it has been shown that after a period of feed restriction, the animals show a pronounced compensatory growth when they return to a sufficient food source. Studies with the penaeid shrimp Litopenaeus vannamei reported the ability of the species to obtain a complete compensatory growth after short feeding periods (1 to 3 days) followed by feeding; These short periods of fasting presented a greater efficiency in the feed conversion besides the decrease in the concentration of phosphorus present in the aquatic environment, coming from the excreta. The adoption of a restriction program in the feeding using BFT may contribute to a reduction in operating costs, reduction of metabolic nutrients dissolved in water, and, consequently, an increase in the number of cycles in which the same water can be reused for production reducing production costs and improving productivity indices in shrimp farming.
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subjects Aquaculture
Aquatic crustaceans
Aquatic environment
Biofloc technology
Biomedical and Life Sciences
Crustaceans
Effluents
Farming
Feed conversion
Feeding
Feeds
Food conversion
Freshwater & Marine Ecology
Growth
Life Sciences
Litopenaeus vannamei
Marine crustaceans
Mineral nutrients
Operating costs
Phosphorus
Production costs
Shellfish
Shellfish farming
Technology
Water use
Zoology
title Compensatory growth and feed restriction in marine shrimp production, with emphasis on biofloc technology
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