Morphophysiological Features of Rainbow Trout (Oncorynchus Mikiss Walbaum) and Whitefish (Coregonus Muksun (Pallas)) Grown in Fish Pond Farming

Kuritsyn, Anton; Ефремов, С. А.; Makarova, T. A.

doi:10.26897/0021-342x-2017-3-84-94

Cited by 4 publications

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“…3, the liver index at the end of the experiment in all fish exceeded the established norms for juvenile trout (1.0-1.5%), which was accompanied by enlargement of the liver beyond its normal size due to elevated load on the organ. As a result, in adult trout it can cause fatty liver disease and health deterioration [5].…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the effectiveness of feed additives in the diet of trout

2023

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The paper studied the effect of feed bioadditives Levabon Rumen E and Digestarom P.E.P. 1000 and a complex of organic acids on the dynamics of mass accumulation, indices of visceral organs, anatomical pathological changes, and hematological parameters of juvenile trout. The maximum positive effect on the morphophysiological parameters and health of fish was revealed for yeast in combination with a phytobiotic as a feed bioadditive. The immune response was found to increase in fish fed bioadditives. A complex of organic acids adversely affects the state of the visceral organs and tissues of fish. A combined use of feed additives in the diet of juvenile trout is recommended in the following concentrations: 2% Levabon Rumen E and 1.5% Digestarom P.E.P. 1000. This combination helps to reduce intensive development of pathological processes in adult fish and improve the physiological parameters of juvenile trout.

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Section: Resultsmentioning

confidence: 99%

Evaluation of the effectiveness of feed additives in the diet of trout

2023

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Nutrient composition of feeds as a polyvalent factor determining status characteristics of industrially raised rainbow trout

Vapirov¹,

Matrosova²,

Kuchko³

2022

The 2nd International Scientific Conference «ecosystems Without Borders - 2021»

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Effects of complex of ß-cyclodextrin with levofloxacin on lethal qualities of Russian and Siberian sturgeon hybrid in regulated conditions

Poddubnaya

Rudneva

Gurkina

2023

Vestnik of Astrakhan State Technical University. Series: Fishing Industry

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When producing aquaculture products in conditions of increased planting densities of aquatic organisms, it is not always possible to avoid various diseases and injuries. The use of therapeutic baths and feeds often does not al-low to achieve a positive effect. Therefore, the use of cyclodextrin nanosponge with therapeutic and prophylactic agents included in their cavity will allow a targeted effect on the bioavailability of substances and the formation of productive indicators of hydrobionts already since early postnatal ontogenesis. All this will contribute to the improvement of industrial technology for growing table and valuable fish species, characterized by higher survival and productivity. The antibiotic levofloxacin, a broad-spectrum antimicrobial bactericidal agent of the fluoroquinolone group, was chosen as a therapeutic EDN agent. There is presented information on the effect of the complex of β-cyclodextrin with levofloxacin on the lethal qualities of a Russian and Siberian sturgeon hybrid of different live weight. The influence of this complex on the pre-slaughter mass, the mass of individual internal organs, the fatness coefficient, the indices of the internal organs of hybrid individuals was studied according to two stages of the experiment performed in the laboratory “Progressive Biotechnologies in Aquaculture” of Vavilov University. The results of the control slaughter demonstrate the highest values for the indicators in individuals of the 2nd experimental group treated with the main diet at the first stage of the complex chitosan-β-cyclodextrin in various dosages of levofloxacin. Its results exceeded the control in the muscle mass, fatness coefficient, muscle tissue index, respectively. Thus, there was no negative effect of the β-cyclodextrin complex with an antibiotic on the functional state of internal organs and tissues of fish. The results obtained expand the information about the cultivation of sturgeon fish in industrial conditions using cyclodextrin nanosponge.

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Morphophysiological Features of Rainbow Trout (Oncorynchus Mikiss Walbaum) and Whitefish (Coregonus Muksun (Pallas)) Grown in Fish Pond Farming

Cited by 4 publications

References 0 publications

Evaluation of the effectiveness of feed additives in the diet of trout

Evaluation of the effectiveness of feed additives in the diet of trout

Nutrient composition of feeds as a polyvalent factor determining status characteristics of industrially raised rainbow trout

Effects of complex of ß-cyclodextrin with levofloxacin on lethal qualities of Russian and Siberian sturgeon hybrid in regulated conditions

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