Use of different carbon sources for the biofloc system adopted during the nursery and grow-out culture of Litopenaeus vannamei

• Published in: Aquaculture international 2015-12, Vol.23 (6), p.1325-1339
• Main Authors: Serra, Fabiane P., Gaona, Carlos A. P., Furtado, Plínio S., Poersch, Luis H., Wasielesky, Wilson
• Format: Article
• Language: English
• Subjects: Ammonia; Bacteria; Biomedical and Life Sciences; Carbon; Carbon sources; Crustaceans; Decapoda; Decomposition; Environmental impact; Freshwater & Marine Ecology; Life Sciences; Litopenaeus vannamei; Marine; Nitrogen; Oxidation; Rice; Rice bran; Syrups & sweeteners; Water quality; Zoology
• ISSN: 0967-6120; 1573-143X
• DOI: 10.1007/s10499-015-9887-6

The carbon sources such as molasses cane sugar, dextrose and rice bran were tested in growing Pacific white shrimp, Litopenaeus vannamei , using the Biofloc Technology System, and the reduction in the concentration of total ammonia nitrogen in the experimental nursery and grow-out phases were assessed in tanks with a volume of 800 L at 35 and 70 days, respectively. In the nursery experiment, postlarvae with an average weight of 0.024 ± 0.01 g were stocked at 1200 m −2 and shrimp with an average weight of 4.09 ± 0.51 g and stocking density of 300 m −2 was used in the grow-out. The carbon sources used in the nursery were molasses (M) and rice bran (R) and in the grow-out were dextrose (D) and rice bran (R). In the nursery experiment, using molasses, the ammonia concentration was significantly lower ( p