Nedyalka V. Georgieva

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The results obtained in this study demonstrated that experimentally induced alimentary muscular dystrophy (MD) in Cobb 500 broiler chickens resulted in increased plasma concentrations of malondialdehyde (MDA), deviations in activities of erythrocyte antioxidant enzymes Cu,Zn-SOD (decrease), and CAT (increase) as well as reduction in plasma concentrations of(More)
This study was undertaken to determine the dietary supplements of Zn containing diet on the antioxidant status in chickens experimentally infected with Eimeria acervulina. The antioxidant status was monitored via determination of MDA concentrations and erythrocyte SOD and CAT activities, as well as vitamin E, vitamin C, Cu, and Zn in liver, muscle, and(More)
The steady-state levels of reactive oxygen species (ROS) determined by the balance between their rates of production and rates of clearance by scavenging mechanisms could be called ecological oxidative balance (EOB) in the biological system. A first-line drug with superior efficacy, used in treating Mycobacterium tuberculosis infection, is rimifon(More)
Superoxide scavenging activity (SSA) of recently synthesized isonicotinoylhydrazones, analogs of the clinically used anti-tuberculosis drug isoniazid (INH), was investigated using xanthine/xanthine oxidase system to generate the superoxide anion. The isonicotinoylhydrazones exhibited well expressed SSA, whereas INH did not show any SSA. All of the(More)
GeorGieva, N., i. Nikolova, T. ZhelyaZkova, D. Pavlov and y. NayDeNova, 2011. Energy efficiency of spring vetch (Vicia sativa l.) cultivated for fresh biomass. Bulg. J. Agric. Sci., 17: 612-720 Field experiment with spring vetch, cultivated for fresh biomass was conducted for establishing productivity, composition, nutritive value and energy efficiency(More)
The purpose of the present study was to develop a simple, rapid and reproducible analytical method for the determination of Nisonicotynoyl-N ́-(3-fluorobenzal)hydrazone (SH2) a synthesized by us halogenated isoniazid derivative with high tuberculostatic activity, in aqueous phase, on the basis of RP-HPLC-PDA and UV/VIS spectrophotometric investigations.(More)
The aim of the present study was to develop cresyl violet (CV)/bentonite composite system, to investigate the equilibrium sorption of the fluorescent dye on bentonite, to determine the characteristic equilibrium and thermodynamic parameters of the system by appropriate empirical isotherm models and to assess its pH-indicator properties. The absorption(More)
The development oforganic agriculture in Bulgarian in recent years has become more topical in connection with the modern requirements for protection of the environment. This study was conducted to investigate the possibility for organic cultivation of common vetch (Vicia sativa L., cultivars ‘Obrazets 666’ and ‘Tempo’) and the changes in terms of forage(More)
Ninety cows affected with Endometritis catarrhalis et purulenta chronica, were divided into three groups consisting of thirty cows each and were equalized according to the method of analyses, were treated for experimental purposes following three diagrams. First diagram (30 cows). On the first, third, fifth, seventh and ninth days trivitaminol with(More)
The encapsulation of rimifon on natural (NZ) and acid-modified (AMZ) zeolites was investigated by UV/VIS, FTIR, and equilibrium sorption studies in aqueous medium. The UV/VIS and FTIR spectral investigations provided data on the nature and characteristics of the drug–zeolite complexes. The probable host–guest interactions during rimifon encapsulation in AMZ(More)