Archaea Haloferax supplementation improves Artemia biomass production in hypersaline conditions
| Autor: | Gilbert Van Stappen, Meirong Gao, Shanyue Wang, Beini Ren, Liying Sui |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0303 health sciences
Sucrose Inoculation Biomass 04 agricultural and veterinary sciences Aquatic Science Biology biology.organism_classification Salinity 03 medical and health sciences chemistry.chemical_compound chemistry Brining 040102 fisheries 0401 agriculture forestry and fisheries Food science Nitrite Haloferax 030304 developmental biology Archaea |
| Zdroj: | Aquaculture. 528:735540 |
| ISSN: | 0044-8486 |
| DOI: | 10.1016/j.aquaculture.2020.735540 |
| Popis: | Archaea, the third domain of life, are usually overlooked in aquaculture. Among them, the genus Haloferax is characterized by its tolerance for a wide salinity range and flexibility in using different organic substrates for cell growth. In order to clarify if Archaea can be predominant in bioflocs under certain conditions, Haloferax sp. was inoculated in an Artemia laboratory culture. Sucrose was added in the culture to stimulate Haloferax growth at C/N ratio of 10. Artemia were fed a formulated diet at four feeding rations (0, 10%, 50% and 100% of recommended feeding level). The experiment was carried out at salinity 100 g L−1 in 1-L culture cones, Haloferax was added at a density of 2 × 107 cells mL−1 before transferring Artemia into the culture system. The culture water was diluted brine with salinity of 100 g L−1. Artemia culture was supplemented with Haloferax at a final density of 107 cells mL−1 every week. The results show that supplementation of sucrose and Haloferax improved Artemia biomass production and significantly reduced TAN and nitrite content in the culture water (P |
| Databáze: | OpenAIRE |
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