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Changesof Weight Indicatorsin Sturgeon Fish When Using Combined Feedswith Various Proteinand Fat Contentsin Closed Water Supply Installations
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| Author:
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V. KRYMOV, D. A. YURIN, S. I. KONONENKO, E. A. MAXIM, N. A. YURINA
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| Abstract:
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The purpose of the research is to summarize the results of observations, conducted at in production and laboratory
conditions on the basis of operating closed water supply installation, on changes in size-weight characteristics, viability
indicators when using combined feeds with different content of crude protein and raw fat, as well as hydrochemical
and water temperature rate. The research was carried out under the conditions of the operating production unit of
closed water supply installation (Saudi Arabia, Dammam) and the experimental small-size module of the closed water
supply installation based on the business incubator (Krasnodar). Two age groups of the backcross of Russian sturgeon
with Siberian sturgeon and sterlet were used in the experiments. The use of combined feeds with a lower fat content
in conditions of closed water supply installations helps significantly reduce the risk of excessive accumulation of fat in
the fish body while maintaining, at an acceptable level, the physiological adequacy and fish-breeding qualities of the
object. The reduction of the energy value of the used combined feed can be provided due to a certain reduction in
the total content of the most energy-intensive components.
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| Keyword:
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sturgeon (Acipenseridae), closed water supply installation, weight gain, rate of available feed utilization.
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| EOI:
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-
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| DOI:
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https://doi.org/10.31838/ijpr/2018.10.04.029
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| Download:
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