NATURAL SCIENCES

Journal of fundamental
and
applied researches

Morphological and physiological characteristics of beluga broodstock and its offspring kept under the conditions of cage fish farms

2016. 2, pp. 46-50

Gayfullina Eleonora A. - postgraduate student, Astrakhan State Technical University, 16 Tatishcheva Str., Astrakhan, 414056, Russian Federation, kafavb@mail.ru

Bakhareva Anna A. - Ph.D. (Biology), Associate Professor, Astrakhan State Technical University, 16 Tatishcheva Str., Astrakhan, 414056, Russian Federation, kafavb@mail.ru

Smirnova Natalia V. - Ph.D. (Biology), Associate Professor, Astrakhan State Technical University, 16 Tatishcheva Str., Astrakhan, 414056, Russian Federation, nsmirnova08@bk.ru

Monitoring of fish physiological state is an essential part of successful keeping of beluga broodstock and its offspring. Blood indices are one of the basic features characterizing fish state. The main goal of the given study is to assess physiological indices of beluga broodstock and its offspring kept under the cage fish farm conditions. The research resulted in processing data on beluga females participating in spawning periods of 2012-2015. The study also covered various age groups of beluga fry that were bred under the cage fish farm conditions. Basic hematological indices (concentration of total serum protein, hemoglobin and erythrocytes accumulation rate) both of beluga broodstock and fry were within the standard limits; that indicates the fish high ability of adaptation to the keeping conditions as well as the absence of pathological processes in organisms. The conducted research demonstrated that cage fish farms allow to domesticate broodstock successfully and to form replacement stock on their own.

Key words: , , , - , , , , , , , sturgeon, beluga, broodstock, replacement broodstock, cages, domestication, average mass, working fer

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