Энтеросорбенты - эффективные средства для оздоровления рыб от инфекционных патологий и получения экологически чистой рыбопродукции в условиях аквакультуры
2008
Beznos, T.V. | Linnik, V.Ya. | Nasonov, I.V. | Yakubovskij, S.M., National Academy of Sciences. Scientific and Practical Center of Animal Breding (Belarus). The S.N. Vyshelesskij Inst. of Experimental Veterinary Medicine | Slukvin, A.M. | Us, V.V., National Academy of Sciences (Belarus). Institute of Genetics and Cytology | Doronkin, N.M., CAR CSARSI, Minsk (Belarus)
Information on the study of sorption activity of the Lignosorb - enterosorbent of Belarus manufacture against ichthyopathogen of different taxonomic groups: bacteria Aeromonas, Citrobacter, Proteus and fungi Saprolegni, is provided. The possibility of use of the Lignosorb for the withdrawing conditional pathogens from bodies of fishes is shown. In experiences in vivo it is shown, that optimum quantity of the enterosorbent at feeding to trial fish are 1,5% from dry weight of forage within 7 days. Indicators of the maintenance of haemoglobin, number of erythrocytes, hematocrit and СОЭ in blood at trial fish remained without changes in comparison with control carps. At pathology-anatomic dissection of trial carps - internal bodies without visible changes. Application of the Lingosorb was not accompanied by destruction of a carp. Organoleptic indicators of fish meat in trial groups did not differ from similar indicators of meat at control carps. A consistence of muscles is dense, elastic, a broth at cooking is transparent, fragrant, with a pleasant smell. Physical and chemical indicators of fish trunk: рН extracts, reaction on peroxidase and hydrogen sulfide, reaction with 5%-s solution of blue vitriol in the broth, Nessler number, amino-ammonia nitrogen and the volatile bases coincided with those at control carps. In intestines at trial fishes the content of microorganisms p. Aeromonas made 103 COE/g, at control carps - 105 COE/g. At microscopic research of preparations-prints from internal bodies and a muscular fabric at trial fishes in one field of microscope marked absence of bacteria while at control carps presence 7,8±0,74 cells in one field of vision (increase 900) took place. The received results testified to absence of changes of veterinary-sanitary qualities of meat at fishes after application of the enterosorbent Lingosorb
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