Effects of dietary marine microalgae,Tetraselmis suecica, on production, gene expression, protein markers and bacterial count of Pacificwhite shrimp Litopenaeus vannamei
| Autor: | Ehab R. El-Haroun, Mohamed Helal, Abdelwahab Kamel, Mohamed Ashour, Waldemar Rossi, Mohamed S. Hassaan, Mahmoud Kelany, Zaki Zaki Sharawy, Hany M. Nazmi, Ola Awad Ashry, Eman M. Abbas, Ashraf M. A. S. Goda |
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| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
0303 health sciences biology Glutathione peroxidase Litopenaeus Live food 04 agricultural and veterinary sciences Chlorophyta Aquatic Science biology.organism_classification Vibrio Shrimp 03 medical and health sciences Tetraselmis suecica Nutrient chemistry 040102 fisheries 0401 agriculture forestry and fisheries Food science 030304 developmental biology |
| Zdroj: | Aquaculture Research. 51:2216-2228 |
| ISSN: | 1365-2109 1355-557X |
| DOI: | 10.1111/are.14566 |
| Popis: | The marine flagellated Chlorophyta Tetraselmis suecica is among the most important live food species in marine aquaculture. In the present study, the effects of dietary supplementation of dried marine microalgae, Tetraselmis suecica, on growth performance; feed utilization; chemical composition; gene expression of superoxide dismutase (SOD), glutathione peroxidase (GPx) and insulin‐like growth factor 2 (IGF‐II) gene of Pacific white shrimp, Litopenaeus vannamei; muscle protein polymorphism; and microbial count were assessed and evaluated. Three hundred and sixty L. vannamei (postlarvae) Pls (0.124 ± 0.002 g) were randomly stocked into 40‐L glass aquaria (30 shrimp/aquarium) and fed three times daily four tested diets: a basal diet (control), diet incorporated with 2.5 g kg⁻¹ dried T. suecica (T1), 5 g kg⁻¹ dried T. suecica (T2) and 7.5 g kg⁻¹ dried T. suecica (T3) in triplicates, for 90 days. At the end of the trial, the survival rate (SR) of L. vannamei fed diets supplemented with different levels of T. suecica was significantly (p .05) differences were found in the total Vibrio count among treatments. Overall, the present results have shown that the diet supplemented with the highest inclusion level of dried T. suecica resulted in improved growth and nutrient utilization. |
| Databáze: | OpenAIRE |
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