EFFECT OF DIGESTIVE ENZYMES AND PHYTOADITIVES ON HAEMATOLOGICAL PARAMETERS AND FATTY ACID COMPOSITION OF SIBERIAN STURGEON MEAT (ACIPENSER BAERI) REARED IN RECIRCULATING SYSTEM

Elena Mocanu, Fl.M. Dima, N. Patriche, Viorica Savin, M.D. Popa

Abstract
    It is vital for aquaculture to produce high quality, healthy biological material. Diets enriched with active ingredients can contribute to the well-being of sturgeons. For the experiment, 5-month-old specimens of Acipenser baeri were used, with an average weight of 34.07 ± 3.68 g / specimen. For the experimental lot, an experimental feed diet was prepared, supplemented with 0.05% digestive enzymes (protease, lipase, amylase, gluco-amylase, beta-glucanase, lactase, hemi-cellulase, pectinase, cellulase, alpha-galactosidase maltodextrin) and 0.15% phytoadditives consisting of a mixture of herbs (Zingiber officinale, Mentha piperita, Foeniculum vulgare, Pimpinella anisum, in equal proportions). The aim of this study is to determine the effect of digestive enzymes and phytoadditives on the haematological parameters and fatty acid composition of Siberian sturgeon meat (Acipenser baeri). ALA (C18:3n3) (4.66%), EPA (C20:5n3) (4.36%) and DHA (C22:6n3) (6.48%), the most important ω3 type PUFA, are found in the largest quantity in the experimental lot. Immunological and biochemical parameters have been improved by including digestive enzymes and phytoadditives in the diets of Siberian sturgeon.