Effects of stocking densities and feeding rates on water quality, feed efficiency, and performance of white leg shrimp Litopenaeus vannamei in an integrated system with sea grape Caulerpa lentillifera

2021 ◽  
Author(s):  
Nguyen Thi Ngoc Anh ◽  
Felix A. Shayo ◽  
Nancy Nevejan ◽  
Nguyen Van Hoa
Keyword(s):  
Water Quality ◽  
Litopenaeus Vannamei ◽  
Feed Efficiency ◽  
Integrated System ◽  
Feeding Rates ◽  
Caulerpa Lentillifera ◽  
And Performance

Effect of different biofloc levels on microbial activity, water quality and performance of Litopenaeus vannamei in a tank system operated with no water exchange

2013 ◽  
Vol 56 ◽  
pp. 59-70 ◽  
Author(s):  
Rodrigo Schveitzer ◽  
Rafael Arantes ◽  
Patrícia Fóes S. Costódio ◽  
Carlos M. do Espírito Santo ◽  
Luis Vinatea Arana ◽  
...  
Keyword(s):  
Water Quality ◽  
Microbial Activity ◽  
Litopenaeus Vannamei ◽  
Water Exchange ◽  
Tank System ◽  
And Performance

scholarly journals EVALUATION OF FEEDING RATES IN THE PRODUCTION OF LITOPENAEUS VANNAMEI SHRIMP USING ARTIFICIAL SUBSTRATES

2018 ◽  
Vol 19 (0) ◽  
Author(s):  
César Rocha Nunes Antunes ◽  
Carlos Alberto da Silva Ledo ◽  
Clóvis Matheus Pereira ◽  
José dos Santos
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Litopenaeus Vannamei ◽  
Conversion Rate ◽  
Feeding Rate ◽  
Artificial Substrates ◽  
Average Weight ◽  
Feeding Rates ◽  
Feed Conversion ◽  
Feed Conversion Rate

Abstract The objective of this study was to evaluate the the influence of feeding rate and different artificial substrates on both the water quality and growth performance of Litopenaeus vannamei shrimp. The experimental design was randomized blocks with five treatments and four replicates, with a density of 30 shrimp m-2 and mean weight of 2.8 g. The experiment lasted 49 days, and during this period, artificial substrates did not influence the water quality. The increase in the feeding rate influenced the dissolved oxygen of treatments. The final average weight, average final length, final biomass, productivity, and feed conversion rate showed significant differences (p > 0.05). The best food conversion factor was provided by the treatment with a feeding rate of 2%. The treatment with a feeding rate of 4% of biomass showed the best growth performance, except for the feed conversion rate. Results showed that for the percentage of 25% of the area of artificial substrates, there is an optimum feeding rate of between 5.13% and 5.54% of shrimp biomass, resulting in maximum production.

Effect of light limitation on the water quality, bacterial counts and performance of Litopenaeus vannamei postlarvae reared with biofloc at low salinity

2017 ◽  
Vol 48 (8) ◽  
pp. 4371-4379 ◽  
Author(s):  
Héctor M Esparza-Leal ◽  
Ely S López-Álvarez ◽  
Jesús T Ponce-Palafox ◽  
Josué A Melendrez-Soto ◽  
Marco A Medina-Astorga ◽  
...  
Keyword(s):  
Water Quality ◽  
Litopenaeus Vannamei ◽  
Light Limitation ◽  
Bacterial Counts ◽  
Low Salinity ◽  
And Performance ◽  
Effect Of Light

Technological Solution for the Treatment of Wastewater Resulting from Autochthonous Aquacultures in Order to Protect the Marine Water Quality

2018 ◽  
Vol 68 (12) ◽  
pp. 2752-2755
Author(s):  
Carmen Tociu ◽  
Tania Zaharia ◽  
Elena Diacu ◽  
Cristina Maria ◽  
Florica Marinescu ◽  
...  
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Black Sea ◽  
Pilot Scale ◽  
Integrated System ◽  
The Black Sea ◽  
Technological Solution ◽  
Aluminium Sulphate ◽  
Metallurgical Slags ◽  
Treatment Step

This paper depicts the research conducted at a micro-pilot scale on autochthonous cultures in order to develop adequate technological solutions for the treatment of wastewater resulting from shrimp cultures (Palaemonidae) that would ensure the protection of the Black Sea ecosystem and constitute an applicable tool for the development of aquaculture in Romania. The proposed objectives were attained by adopting an integrated system of marine cultures shrimps-mussels-macrophyte algae, followed by a conventional chemical treatment step using aluminium sulphate recovered from metallurgical slags. This system together with wastewater treatment ensures an optimum development of species and a minimum load of pollutants in the aquatic environment.

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