Does vertical substrate could influence the dietary protein level and zootechnical performance of the Pacific white shrimp Litopenaeus vannamei reared in a biofloc system?
| Autor: | Giovanni Lemos de Mello, Marcel Martínez-Porchas, Maurício Gustavo Coelho Emerenciano, Bruno Silva Olier, Jiovani Sergio Bee Tubin |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
biology business.industry 010604 marine biology & hydrobiology Litopenaeus Biomass 04 agricultural and veterinary sciences Aquatic Science biology.organism_classification 01 natural sciences Feed conversion ratio Substrate (marine biology) Shrimp Animal science Productivity (ecology) Aquaculture 040102 fisheries 0401 agriculture forestry and fisheries Dry matter business Agronomy and Crop Science |
| Zdroj: | Aquaculture International. 28:1227-1241 |
| ISSN: | 1573-143X 0967-6120 |
| Popis: | The biofloc technology (BFT) system has been gaining more space in the world aquaculture scenario. Nowadays, the demand for information regarding BFT has grown, and new studies have been developed with the aim of increasing the system’s productivity without harming the environment. In the present study, two dietary protein levels were evaluated (30 and 35% crude protein CP) with the addition or absence of a vertical substrate within the culture units. Ninety-six Litopenaeus vannamei shrimp juveniles (3.55 ± 0.26 g) were stocked in 12 tanks (eight per tank) with an operative volume of 18 L. Both water quality parameters and the microbial profile were monitored during the trial along with a proximate composition analysis of the shrimp at the end of the trial (6 weeks). No interaction between substrate and protein level was observed (P |
| Databáze: | OpenAIRE |
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