Open AccessProviding factual support for efficient techniques of breeding tropical freshwater species
Author(s) -
Lina Yurievna Lagutkina,
Evgeniia Germanovna Kuzmina,
Aliya Baimuratovna Akhmedzhanova,
Anna Aleksandrovna Taranina,
Victor Sergeevich Yasinskii,
Rodion Aleksandrovich Ponomarev
Publication year - 2020
Publication title -
vestnik astrahanskogo gosudarstvennogo tehničeskogo universiteta. seriâ: rybnoe hozâjstvo
Language(s) - English
Resource type - Journals
eISSN - 2309-978X
pISSN - 2073-5529
DOI - 10.24143/2073-5529-2020-2-94-105
Subject(s) - aquaculture , crayfish , fishery , productivity , shrimp , biology , macrobrachium rosenbergii , cherax quadricarinatus , environmental science , ecology , fish <actinopterygii> , prawn , macroeconomics , economics
The article describes the possibility to grow tropical freshwater crayfish Cherax quadricarinatus (Von Martens, 1868) and shrimp Macrobrachium rosenbergii (De Man, 1879)
in the climatic conditions of the Astrakhan region during 3-5 months, with further wintering in the ponds of fish farms. To achieve the maximum effect of the semi-intensive and intensive cultivation conditions it is necessary to apply additional feeding, observe the norms of seeding density and the diets of crustaceans. In two series of experimental works conducted in 2019-2020 on the base of Astrakhan State Technical University and a small innovative enterprise Modern Fishbreeding Complex Sharapovsky there was studied the method of increasing the biological and aquaculture potential of fast-growing tropical freshwater crayfish and shrimps by adjusting feed diets, chilled wet feed, and native formula feed based on feed components of local raw materials. Salicornia perennans Willd, a halophyte plant, was introduced into the formulation for the first time. As a result of experimental works the recommendations on semi-intensive and intensive cultivation of tropical freshwater species have been formulated, the possibility of increasing biological and aquaculture productivity of grown objects has been considered, which is recorded in the fish-biological standards and general management processes.