ADC PIEŠOVÁ, Elena - FAIXOVÁ, Zita - MAKOVÁ, Zuzana - VENGLOVSKÁ, Katarína - GREŠÁKOVÁ, Ľubomíra - FAIX, Štefan - ČOBANOVÁ, Klaudia. Effects of dietary manganese on antioxidant status, biochemical parameters and thickness of intestinal mucus in laying hens. In Czech Journal of Animal Science. ISSN 1212-1819, 2019, vol 64, no. 3, p. 99-106. (2019: 0.835 - IF).

Basic data
OCA1. Surname awarded to the assessed personFaixová
OCA2. Name awarded to the assessed personZita
OCA3. Degrees awarded to the assessed personProf. , DVM, PhD, MPH
OCA4. Hyperlink to the entry of the person in the Register of university staffhttps://www.portalvs.sk/regzam/detail/6015
OCA5. Area of assessmentstudy programme veterinary morphology and physiology · III. degree
OCA6. Category of the research/artistic/other outputscientific output
OCA7. Year of publication of the research/artistic/other output2019
OCA8. ID of the record in the Central Registry of Publication Activity (CRPA) or the Central Registry of Artistic Activity (CRAA)171893
OCA9. Hyperlink to the record in CRPA or CRAAhttps://app.crepc.sk/?fn=detailBiblioFormChildUVQOA&sid=26764B43C57DF4A5B3D9FD6A4F&seo=CREP%C4%8C-detail-%C4%8Cl%C3%A1nok
Characteristics of the output that is not registered in CRPA or CRAA
OCA10. Hyperlink to the record in another publicly accessible register, catalogue of research/ artistic/other outputshttps://www.webofscience.com/wos/woscc/full-record/WOS:000461010300001
OCA11. Characteristics of the output in the format of the CRPA or the CRAA bibliographic record, if the output is not available in a publicly accessible register or catalogue of outputsADC PIEŠOVÁ, Elena - FAIXOVÁ, Zita - MAKOVÁ, Zuzana - VENGLOVSKÁ, Katarína - GREŠÁKOVÁ, Ľubomíra - FAIX, Štefan - ČOBANOVÁ, Klaudia. Effects of dietary manganese on antioxidant status, biochemical parameters and thickness of intestinal mucus in laying hens. In Czech Journal of Animal Science. ISSN 1212-1819, 2019, vol 64, no. 3, p. 99-106. (2019: 0.835 - IF).
OCA12. Type of the output (if the output is not registered in CRPA or CRAA) article
OCA13. Hyperlink to the webpage where the output is available (full text, other documentation, etc.)https://www.agriculturejournals.cz/publicFiles/148_2018-CJAS.pdf
OCA14. Characteristics of the author's contributionZF is the author of the article. She participated in the analysis of parameters and statistically evaluated the results. The author is the principal investigator of one of the Vega grants from which the experiment was financed. Together with the co-authors, she prepared the text of the article.
OCA15. Annotation of the output with contextual information concerning the description of creative process and the content of the research/artistic/other activity, etc.Manganese is part of many enzymatic systems (arginase, pyruvate carboxylase, Mn-superoxide mismase). Manganese is absorbed in the small intestine. The mucus layer is made up of mucin glycoproteins that synthesize goblet cells. Changes in the properties of the mucus layer in the intestine may affect the absorption of macromolecules and ions. The requirements of laying hens for manganese exceed its availability from feed, and therefore manganese must be added to the feed ration in organic or inorganic form. The results of an experiment in which laying hens were fed a diet enriched with the addition of manganese in organic or inorganic form indicate that the addition in a group of animals fed Mn in inorganic form significantly increased the enzymatic activity of GPX in the blood. The enzymatic activity of Mn-SOD in erythrocytes was increased in both experimental groups. Dieting with an organic source of manganese increased the overall antioxidant status of laying hens. The thickness of the jejunum mucus layer was reduced in the group fed with the organic form of manganese. The results showed that the addition of manganese to the diet adjusted the biological antioxidant potential and reduced the thickness of the mucus layer in the jejunum in laying hens.
Other data
OCA16. Annotation of the output in EnglishThe objective of this study was to investigate the effects of different sources of manganese on the antioxidant status, biochemical parameters and thickness of intestinal mucus in laying hens. 96 20-week-old hens were divided into 4 groups: each group was replivcates 6 times with 4 hens/preplicate. Hens in the control group were fed the basal diet with natural background Mn 45.5 mg/kg feed. For the 3 experimental groups, basal diet was supplemented with 120 mg Mn/kg either from Mn-sulphate or Mn-chelate of protein hydrolysate (Mn-Bioplex) or Mn-chelate of glycine hydrate (Mn-Glycinoplex). There was a tendency of increasing SOD activity in RBCs in all experimental groups. The results showed that inorganic source Mn increased GPX activity in the blood, intake of Mn-Bioplex resulted in increased TAS in the plasma compared to the control group. The plasma bap was increased in the treatment groups supplemented with Mn-sulphate and Mn-Bioplex.Mucus layer thickness in the jejunum was reduced in group fed organbic form of Mn and inorganici form of Mn. The results incicate that the addition of dietary Mn was effective in improving the biological antioxidant potencial, decreased plasma cholesterol and reducing the thickness of adherent intestinal mucus gel in the jejunum of hens.
OCA17. List of maximum 5 most significant citations corresponding to the output
OCA18. Characteristics of the output's impact on socio-economic practiceThe requirements of laying hens for manganese exceed its availability from feed, and therefore manganese must be added to the feed ration in organic or inorganic form. The results of an experiment in which laying hens were fed a diet enriched with the addition of manganese in organic or inorganic form indicate that the addition in a group of animals fed Mn in inorganic form significantly increased the enzymatic activity of GPX in the blood. The enzymatic activity of Mn-SOD in erythrocytes was increased in both experimental groups. Dieting with an organic source of manganese increased the overall antioxidant status of laying hens. The thickness of the jejunum mucus layer was reduced in the group fed with the organic form of manganese. The results showed that the addition of manganese to the diet adjusted the biological antioxidant potential and reduced the thickness of the mucus layer in the jejunum in laying hens. The obtained results expand the knowledge about the absorption, utilization of manganese in organic and inorganic form, modulation of metabolic processes (fat metabolism) and mucus barrier in thin laying hens.
OCA19. Characteristics of the output and related activities' impact on the educational processThe results of the study are primarily used in the pedagogical process, the solution of diploma theses, but also in scientific research work. The results of this experiment demonstrate that different sources of Mn used as dietary supplements significantly increase the biological antioxidant potential of laying hens.

Last updated: 28.10.2026

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