Cultivating Moina macrocopa Straus in different media using carotenogenic yeast Rhodotorula
Olga Kushniryk, Oleksii Khudyi, Lidiia Khuda, Ryszard Kolman, Mykhailo Marchenko
ABSTRACT. The possibility of using carotenogenic yeast from the genus Rhodotorula as food substrate was studied during the cultivation of Moina macrocopa. The results showed that replacing traditional food substrates during the cultivation of the live fish food M. macrocopa resulted in improved characteristics that were superior to the alternative. Using carotenogenic yeast Rhodotorula glutinis (Fres.) Harrison to stimulate carotenoid accumulation in live feed is better than R. rubra (Demme) Lodder. The optimal duration of enriching M. macrocopa with carotenoids was four days when using various types of yeast capable of carotenogenesis. Replacing the standard medium for culturing M. macrocopa with the alternative medium was less expensive. Breeding live feed on recirculating aquaculture system (RAS) post-production water was proven to be effective.
Keywords: carotenoid sources, culture media, live feed, Cladocera
CORRESPONDING AUTHOR:
O. Kushniryk, O. Khudyi [+], L. Khuda, M. Marchenko
Department of Biochemistry and Biotechnology
Yuriy Fedkovych Chernivtsi National University, Ukraine
e-mail: khudij@email.ua
R. Kolman
Department of Ichthyology
Inland Fishery Institute in Olsztyn, Poland