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Dive into the research topics where Monika Schneidgenová is active.

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Featured researches published by Monika Schneidgenová.


Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering | 2013

The impact of lead and cadmium on selected motility, prooxidant and antioxidant parameters of bovine seminal plasma and spermatozoa

Eva Tvrdá; Zuzana Kňažická; Jana Lukáčová; Monika Schneidgenová; Zofia Goc; Agnieszka Greń; Csaba Szabó; Peter Massanyi; Norbert Lukáč

The aim of this study was to investigate the effects of lead (Pb) and cadmium (Cd) content on basic motility characteristics (motility-MOT, progressive motility-PROG) as well as selected markers of the prooxidant-antioxidant balance (catalase-CAT, glutathione-GSH, malondialdehyde-MDA) in bovine seminal plasma and spermatozoa. Twenty five semen samples were collected from breeding bulls and used in the study. Motility analysis was carried out using the Computer Assisted Sperm Analysis (CASA) system. The samples were centrifuged, fractions of seminal plasma and spermatozoa were separated, lysates were prepared from the sperm cell fractions. Pb and Cd concentrations were determined by the voltametric method (ASV), antioxidants and MDA were analyzed by UV/Vis spectrophotometry. The analysis showed that the average concentration of Pb in the seminal plasma was 0.23 ± 0.02 μg/mL, while its amount in the sperm cells was significantly higher (0.41 ± 0.07 μg/mL; P < 0.05). The average Cd content in bovine seminal fractions was similar and non-significant: 0.09 ± 0.01 μg/mL in the seminal plasma and 0.11 ± 0.01 μg/mL in spermatozoa (P > 0.05). The correlation analysis revealed that both heavy metals were significantly negatively correlated with MOT and PROG (P < 0.05; P < 0.01; P < 0.001), CAT (P < 0.05; P < 0.01) as well as GSH (P < 0.05; P < 0.01) but significantly positively associated with MDA as the marker of lipid peroxidation (P < 0.05; P < 0.01). Moreover the samples were categorized in three quality groups (Excellent, Good, Moderate) according to their motility values. The lowest Pb, Cd and MDA concentrations but the best antioxidant characteristics were found in samples of the best quality, moderate quality samples exhibited the highest Pb, Cd and MDA content together with the worst antioxidant capacity. This study demonstrates that Pb and Cd are serious toxic elements, which are able to increase the risk of seminal oxidative stress development and a subsequent decrease of male fertility.


Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes | 2008

Nickel-induced blood biochemistry alterations in hens after an experimental peroral administration.

Adriana Kolesárová; Marcela Capcarova; Henrieta Arpášová; Anna Kalafova; Peter Massanyi; Norbert Lukáč; Jaroslav Kovacik; Monika Schneidgenová

The purpose of this study was to determine certain blood biochemical parameters in hens of Isa Brown breed (n = 20) after nickel administration. Animals were divided into four groups (K, P1, P2, P3). Experimental hens (n = 5; in each group) received nickel (NiCl2) as peroral administration in drinking water in various doses (P1 – 0.02 g NiCl2/L; P2 – 0.2 g NiCl2/L; P3 – 2.0 g NiCl2/L of drinking water) for 28 days. The last group – K (n = 5) was the control, receiving no nickel. Biochemical parameters of mineral profile (calcium; phosphorus; magnesium; sodium; potassium) and of energy and enzymatic profile [(glucose; total cholesterol; total proteins; triglycerides; alanine aminotransferase (ALT) aspartate aminotransferase (AST) gamma glutamyl transferase (GGT) and glutamatdehydrogenase (GLDH)] were analyzed in blood serum on Day 0, 7, 14, 21 and 28 of the experiment. Average levels of mineral metabolism parameters were relatively stable apart from calcium. The evaluation registered a significant decrease in calcium during the experiment mainly in the group with highest nickel concentration in drinking water. No significant differences were detected between groups in energy and enzymatic profile apart from the concentrations of ALT on Day 7. In conclusion, there were significant associations between nickel levels and calcium and ALT in blood serum of the hens. No significant differences were detected in other biochemical parameters of mineral profile (P, Mg, Na, K) and energy and enzymatic profile (glucose, total cholesterol, total proteins, triglycerides, AST, GGT and GLDH) after nickel administration. Our results may contribute to an evaluation of reference levels of analyzed parameters, to monitor the health and nutritional status of hens. In this study also the negative effect of nickel mainly on calcium metabolism was detected.


Journal of veterinary medicine | 2013

Impact of Seminal Chemical Elements on the Oxidative Balance in Bovine Seminal Plasma and Spermatozoa.

Eva Tvrdá; Norbert Lukáč; Monika Schneidgenová; Jana Lukáčová; Csaba Szabó; Zofia Goc; Agnieszka Greń; Peter Massányi

Mutual relationships between selected chemical elements (Na, K, Fe, Cu, Mg, and Zn), basic motility characteristics (motility and progressive motility), and markers of the oxidative balance (superoxide dismutase, catalase, glutathione, albumin, and malondialdehyde) were investigated in bovine seminal plasma and spermatozoa. Computer assisted sperm analysis was used to assess the motility parameters; mineral concentrations were determined by the voltammetric method and flame absorption spectrophotometry; antioxidants and malondialdehyde were evaluated by UV/VIS spectrophotometry. Concentrations of chemical elements in both seminal fractions were in the following descending order: Na > K > Zn > Mg > Fe > Cu. Higher amounts of all minerals and nonenzymatic antioxidants were detected in the seminal plasma (P < 0.01; P < 0.001), while higher MDA concentration and activity of enzymatic antioxidants were recorded in the cell lysates (P < 0.01; P < 0.001). Na, Fe, Cu, Mg, and Zn were positively correlated with the motility and antioxidant parameters (P < 0.05; P < 0.01; P < 0.001). Inversely, K exhibited the positive associations with malondialdehyde (P < 0.05). This study demonstrates that most chemical elements are integral components of bovine semen and are needed for the protection against oxidative stress development.


Toxicology reports | 2018

Assessment of rabbit spermatozoa characteristics after amygdalin and apricot seeds exposure in vivo

Eduard Kolesár; Eva Tvrdá; Marek Halenár; Monika Schneidgenová; Lubica Chrastinova; Lubomír Ondruska; Rastislav Jurcik; Anton Kováčik; Eva Kovacikova; Peter Massanyi; Adriana Kolesárová

Highlights • Rabbit spermatozoa parameters after amygdalin and apricot seeds exposure.• Evaluation of spermatozoa motility by the CASA system.• Decrease of spermatozoa motility after intramuscular AMG application.• Oral consumption of apricot seeds had no effect on the spermatozoa motility.• Our data suggest the potential impact of AMG and apricot seeds on male reproduction.


Potravinarstvo | 2017

The investigation of alfaalfa effect on the activity of superoxide dismutase in chicken meat in dependence on time storage

Jana Tkáčová; Mária Angelovičová; Marcela Capcarova; Adriana Kolesárová; Monika Schneidgenová; Adriana Pavelková; Marek Bobko; Juraj Čuboň

This study was conducted in order to monitor the effect of adding lucerne meal to chicken feed mixtures. The experiment was conducted at the Department Food Hygiene and Safety, Faculty of Biotechnology and Food Science, Slovak University of Agriculture in Nitra. Chickens for meat production - final type Cobb 500 were used in the experiment. Chickens were placed in boxes all together for one group at the beginning of the experiment and from 14 days of age chickens were divided individually into floor enriched cages. Feeding of chickens lasted 38 days. The experiment was carried out without sex segregation. For the production of a feed composition was used alfalfa ( Medicago sativa ) as lucerne meal, which was added to the feed at a rate of 4%, namely: starter (HYD-01), growth (HYD-02) and final (HYD-03). The control group did not include the addition of lucerne meal. Chickens were fed ad libitum . Chickens were slaughtered after completion of feeding and the meat samples were taken for analysis. The collected samples were stored at -18 °C. Collected samples of meat were analyzed after slaughter chickens at time intervals of 6, 12 and 18 months. In the experiment was monitored the content of supeoxid dismutase in the chicken meat depending on the length of storage time. Superoxide dismutase content was increasing by storage time, while there were some statistically significant differences between groups. Normal 0 21 false false false SK X-NONE X-NONE


Potravinarstvo | 2015

Quality of meat of rabbits after application of epicatechin and patulin

Anna Kalafova; Jozef Bulla; Ondrej Bucko; Jana Emrichová; Katarína Zbyňovská; Peter Petruška; Monika Schneidgenová; Ľubica Chrastinová; Ľubomír Ondruška; Rastislav Jurcik; Martin Mellen; Marcela Capcarova

The aim of the present study was to determinate the effect of epicatechin and patulin on selected parameters of meat quality of rabbits. Adult female rabbits (n=25), maternal albinotic line (crossbreed Newzealand white, Buskat rabbit, French silver) and paternal acromalictic line (crossbreed Nitra’s rabbit, Californian rabbit, Big light silver) were used in experiment. Animals were divided into five groups: control group (C) and experimental groups E1, E2, E3, and E4. Animals from experimental groups E1, E2, E3, E4 received patulin through intramuscular injection (10 µg.kg -1 ) twice a week and animals from groups E2, E3, E4 received epicatechin three times a week through intramuscular injection. After 30 days animals were slaughtered. For analysing of meat quality the samples of Musculus longissimus dorsi (50 g) were used. Application of epicatechin and patulin to rabbits had slight or no effect on the pH levels in stomach, small intestine, large intestine and urinary bladder contents, however differences among the groups were insignificant (p ˃0.05). Application of epicatechin and patulin to rabbits had slight or no effect on total water, protein, fat and differences among the groups were insignificant (p >0.05). The values of amino acids concentrations were not influenced after application of epicatechin and patulin. The fatty acid profiles in animals after application of different doses of epicatechin and 10 µg.kg -1 patulin were similar (p >0.05). Concentration of cholesterol increased in experimental groups in comparison with the control group, but differences were insignificant (p >0.05). pH levels of meat of rabbits in experimental group E3 was lower when compared with the control group, but differences was not significant (p >0.05). Electric conductivity parameter was increased in each experimental group (in E3 the highest) against the control but without significant differences (p >0.05). Colour L parameter was slightly decreased in experimental groups with comparison to the control group (in E3 the lowest). Generally we can conclude that intramuscular application of epicatechin or patulin did not affect parameters of meat quality as well as pH values of internal organs content. Further investigations are needed to prove the final answer concerning the health promoting effects of epicatechin and patulin.


International Journal of Poultry Science | 2008

Blood Biochemical Dynamics and Correlations in Laying Hens after Experimental Nickel Administration

Marcela Capcarova; Anna Kolesárová; Henrieta Arpášová; Peter Massanyi; Norbert Lukáč; Jaroslav Kovacik; Anna Kalafova; Monika Schneidgenová


The Journal of Microbiology, Biotechnology and Food Sciences | 2012

Relationships between iron and copper content, motility characteristics and antioxidant status in bovine seminal plasma.

Eva Tvrdá; Zuzana Knazicka; Jana Lukáčová; Monika Schneidgenová; Peter Massanyi; Zofia Goc; Robert Stawarz; Norbert Lukáč


The Journal of Microbiology, Biotechnology and Food Sciences | 2017

THE EFFECT OF PATULIN ON RABBIT SPERM MOTILITY AND PROGRESSIVE MOTILITY

Monika Schneidgenová; Anna Kalafova; Jana Emrichová; Katarina Zbynovska; Peter Petruška; Lubomír Ondruska; Rastislav Jurcik; Lubica Chrastinova; Marcela Capcarova


Animal Welfare, Ethology and Housing Systems | 2013

Haematological changes in rabbit's blood after two weeks exposure of patulin.

Katarina Zbynovska; Jana Emrichová; Anna Kalafova; Peter Petruška; Lubomír Ondruska; Rastislav Jurcik; Lubica Chrastinova; A. Kovacik; Monika Schneidgenová; Eva Tušimová; Marcela Capcarova

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Anna Kalafova

Slovak University of Agriculture

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Marcela Capcarova

Slovak University of Agriculture

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Norbert Lukáč

Slovak University of Agriculture

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Peter Massanyi

Slovak University of Agriculture

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Adriana Kolesárová

Slovak University of Agriculture

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Jaroslav Kovacik

Slovak University of Agriculture

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Eva Tvrdá

Slovak University of Agriculture

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Anton Kováčik

Slovak University of Agriculture

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Katarina Zbynovska

Slovak University of Agriculture

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