Astaxanthin as part of feed for industrial aquaculture facilities

Modern combined feeds provide high plastic growth of fish, but their composition differs from the natural food of fish, and first – by the presence or absence of biologically active substances (BAS) of natural origin in their composition, which regulate many metabolic processes in the body. The shortage of BAS in feed, in conditions of high-intensity aquaculture and super-intensive cultivation technologies, can affect the quality of producers and their offspring. Along with vitamins and minerals, this also includes carotenoids – natural pigments contained in the natural food of fish. Caratinoids are a numerous and widespread group of pigments in nature that are part of the cells of microorganisms, algae and higher plants, as well as animal and human cells. It was found that the addition of astaxanthin 20.0 and 40.0 mg/kg to the composition of production feeds allowed increasing productivity by 22.0% and 39.2%, respectively, and to have a positive effect on the physiological state of fish.

1. Ponomarev S.V. Carotenoids in aquaculture of sturgeon fish / S.V. Ponomarev. – Rostov-on-Don, 2010. – 148 p.

2. Grozescu Yu.N. A new carotene-containing preparation with compound feeds for sturgeon / Yu.N. Grozescu, M.A. Mitrofanova // Bulletin of the Astrakhan State Technical University. Series: Fisheries. – 2004. – №2 (21). – Pp. 81-88.

3. Ostroumova I.N. Biological bases of fish feeding / I.N. Ostroumova. Ed. 2. – St. Petersburg: GosNIORH, 2012. – 564 p.

4. Ponomarev S.V. Forage and feeding of fish in aquaculture / S.V. Ponomarev, A.A. Ba-hareva, Yu.N. Grozescu. – M.: Morkniga, 2013. – 417 p.

5. Pravdin I.F. Guide to the study of fish / I.F. Pravdin. – M.: Food industry, 1966. – 376 p.

6. Kolb V.G. Clinical biochemistry: a manual for laboratory doctors / V.G. Kolb, V.S. Kamyshnikov. – M.: Belarus, 1976. – 311 p.

7. Filippovich Yu.B. Practicum on general biochemistry / Yu.B. Filippovich, T.A. Egorova, G.A. Sevastyanova. – M.: Prosveshchenie, 1975. – 318 p.

8. Fish bach F. A manual of laboratory diagnostic tests. 7thed / F. Fish bach, M. Dunning. –Lppincott Williams & Wilkins, 2004. – 1291 p.

9. Trinder P. Determination of glucose in blood using glucose oxidase with an alternative oxygen acceptor / P. Trinder // Ann Clin Biochem. – 1969. – P. 24 - 25.

10. Usov M.M. Morphology and physiology of fish. Laboratory workshop: educational and methodical manual / M. M. Usov. – G.: BGSHA, 2017. – 114 p.

11. Lakin G.F. Biometrics / G.F. Lakin. – M.: Higher School, 1990. – 293 p.

12. Ableev D.R. The influence of the sex ratio in the breeding stock of tilapia on the efficiency of spawning and physiological and biochemical indicators of producers / D.R. Ableev, A.B. Akhmedzhanova, S.V. Ponomarev // Fish farming and fisheries. – 2020. –№ 5 (172). – Pp. 54-61.