<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The present study was aimed to evaluate the effects of different levels of salinity on water quality, growth performance, survival rate and body composition of Pacific white shrimp in a heterotrophic/ biofloc technology (BFT). Shrimp post-larvae with an average weight of 74.46 mg were cultured in 300 L fiberglass tanks containing 130 L water at a density of 1 post-larva/L. Three treatments including different levels of salinity of 8, 21 and 32 ppt with three replicates were considered. The highest levels of body weight, growth rate, specific growth rate, increase in body length and survival rate were observed at high salinity level (32 ppt). The highest feed conversion ratio (FCR) and the lowest level of feed efficiency were obtained in shrimps cultured at lowest salinity level (P&lt;0.05). Biochemical analysis of shrimp body composition showed an increase in protein, lipid and ash content as the salinity was elevated (P&lt;0.05). The zero-water exchange system used in this study had no significant effects on water quality parameters. The results of the present study concluded that high salinity level (32 ppt) improves the growth and survival of the biofloc supplemented Pacific white shrimp in a BFT system.</p></abstract>

The present study was aimed to evaluate the effects of different levels of salinity on water quality, growth performance, survival rate and body composition of Pacific white shrimp in a heterotrophic/ biofloc technology (BFT). Shrimp post-larvae with an average weight of 74.46 mg were cultured in 300 L fiberglass tanks containing 130 L water at a density of 1 post-larva/L. Three treatments including different levels of salinity of 8, 21 and 32 ppt with three replicates were considered. The highest levels of body weight, growth rate, specific growth rate, increase in body length and survival rate were observed at high salinity level (32 ppt). The highest feed conversion ratio (FCR) and the lowest level of feed efficiency were obtained in shrimps cultured at lowest salinity level (P<0.05). Biochemical analysis of shrimp body composition showed an increase in protein, lipid and ash content as the salinity was elevated (P<0.05). The zero-water exchange system used in this study had no significant effects on water quality parameters. The results of the present study concluded that high salinity level (32 ppt) improves the growth and survival of the biofloc supplemented Pacific white shrimp in a BFT system.

Effects of Different Salinity Levels on Water Quality, Growth Performance and Body Composition of Pacific White Shrimp (<italic>Litopenaeus vannamei</italic> Boone, 1931) Cultured in a Zero Water Exchange Heterotrophic System

Department of Fisheries Science and Engineering, Faculty of Natural Resources

Shrimp Research Center, Iranian Fisheries Sciences Research Institute (IFSRI)

Annals of Animal Science

This work is licensed under the Creative Commons Attribution 4.0 International License.

Effects of Different Salinity Levels on Water Quality, Growth Performance and Body Composition of Pacific White Shrimp ( Boone, 1931) Cultured in a Zero Water Exchange Heterotrophic System

The present study was aimed to evaluate the effects of different levels of salinity on water quality, growth performance, survival rate and body composition of...

Effects of Different Salinity Levels on Water Quality, Growth Performance and Body Composition of Pacific White Shrimp (Litopenaeus vannamei Boone, 1931) Cultured in a Zero Water Exchange Heterotrophic System

Pubblicato online: 07 nov 2020

Pagine: 1471 - 1486

Ricevuto: 01 gen 2020

Accettato: 19 mar 2020

DOI: https://doi.org/10.2478/aoas-2020-0036

Parole chiave
aquaculture, shrimp, Pacific white shrimp, salinity, biofloc

© 2020 Mohammad Hossein Khanjani et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Effects of Different Salinity Levels on Water Quality, Growth Performance and Body Composition of Pacific White Shrimp (Litopenaeus vannamei Boone, 1931) Cultured in a Zero Water Exchange Heterotrophic System

Pubblicato online: 07 nov 2020

Pagine: 1471 - 1486

Ricevuto: 01 gen 2020

Accettato: 19 mar 2020

DOI: https://doi.org/10.2478/aoas-2020-0036

Parole chiaveaquaculture, shrimp, Pacific white shrimp, salinity, biofloc

© 2020 Mohammad Hossein Khanjani et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Parole chiave
aquaculture, shrimp, Pacific white shrimp, salinity, biofloc