Rozhnova Victoria Olegovna (Assistant
Kerch State Maritime Technological University, Kerch
)
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The article examines the patterns of reproductive dynamics and thermal stability of populations of marine rotifers Brachionus plicatilis when using various feed substrates under conditions of uncontrolled temperature fluctuations (20-23°C). A three-variant laboratory experiment compared a mono-diet of baking yeast (Saccharomyces cerevisiae), a combination of Diacronema lutheri (11 × 10⁶ cells/ml) with yeast and vitamin B₁₂ (0.02 ml/l), as well as an experimental mixture of Diacronema lutheri + Methionine + vitamin B₁₂. Cultivation was carried out in glass bioreactors (2000 ml, salinity 12-13%, initial density 20 individuals/ml) with aeration and monitoring of temperature and population size. The significant superiority of enriched nutrient mixtures has been established. The results obtained substantiate the expediency of switching from a traditional yeast mono-diet to standardized combined substrates for the production of high-quality live feed in aquaculture. The developed approaches increase the reproductive capacity of rotifers, minimize the risks of developmental pathologies of larval marine fish (pigmentation deficiency, reduced immunogenicity) and ensure the survival of fry, creating the basis for sustainable technologies of mass cultivation.
Keywords:Brachionus plicatilis, Diacronema lutheri, reproductive dynamics, thermal stability, DC-PUFA omega-3, methionine, aquaculture, live feed.
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Citation link:
Rozhnova V. O. INVESTIGATION OF THE PECULIARITIES OF BRACHIONUS PLICATILIS CULTIVATION // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2026. -№02/2. -С. 6-11 DOI 10.37882/2223-2966.2026.02-2.19 |
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