Acta Veterinaria Hungarica
Volume/Issue:
Volume 65: Issue 1
Effect of fulvic and humic acids on iron and manganese homeostasis in rats
Authors:
József Szabó Department of Animal Breeding, Nutrition and Laboratory Animal Science, University of Veterinary Medicine, P. O. Box 2, H-1400 Budapest, Hungary

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András Valentin Vucskits Europharmavet Ltd.,, Budapest, Hungary

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Erzsébet Berta Department of Animal Breeding, Nutrition and Laboratory Animal Science, University of Veterinary Medicine, P. O. Box 2, H-1400 Budapest, Hungary

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Emese Andrásofszky Department of Animal Breeding, Nutrition and Laboratory Animal Science, University of Veterinary Medicine, P. O. Box 2, H-1400 Budapest, Hungary

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András Bersényi Department of Animal Breeding, Nutrition and Laboratory Animal Science, University of Veterinary Medicine, P. O. Box 2, H-1400 Budapest, Hungary

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István Hullár Department of Animal Breeding, Nutrition and Laboratory Animal Science, University of Veterinary Medicine, P. O. Box 2, H-1400 Budapest, Hungary

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Pages:
66–80
Online Publication Date:
Mar 2017
Publication Date:
01 Mar 2017
Article Category:
Journal Article
DOI:
https://doi.org/10.1556/004.2017.007
Keywords:
Fulvic acid; humic acid; trace element metabolism; iron; manganese; homeostasis
Open access

The objective of this study was to investigate the effects of fulvic acid (FA) and humic acid (HA) as the two main compounds of humic substances, separately on Fe and Mn homeostasis. Seventy-two male Wistar rats were randomly divided into 9 experimental groups. The control diet (AIN-93G formula) and diets supplemented with 0.1%, 0.2%, 0.4% and 0.8% HA or FA were fed for 26 days. Fe and Mn concentrations of the large intestinal content, liver, kidney, femur and hair were determined. No significant differences were observed in the production parameters. The effects of FA and HA on iron homeostasis were significantly different. FA proved to be a good iron source, and slightly increased the iron content of liver and kidney, but — up to a dietary iron level of 52.7 mg/kg — it did not influence the efficiency of iron absorption. Above a dietary iron level of 52.7 mg/kg down-regulation of Fe absorption can be assumed. HA significantly stimulated the iron uptake and there was no down-regulation of Fe absorption up to 0.8% dietary HA supplementation level (61.5 mg Fe/kg diet). In the HA groups the iron content of the liver and kidney decreased significantly, suggesting that in spite of the better Fe absorption, the HA—Fe complex does not provide iron to the investigated organs. Neither FA nor HA supplementation influenced the Fe content of the femur and hair and slightly decreased the Mn concentration in the large intestinal content. This effect was significant (with a 22.7% Mn concentration decrease) only at the HA supplementation rate of 0.8%. Neither FA nor HA influenced significantly the Mn concentrations of the liver, kidney and femur. The Mn concentration of the hair in rats receiving FA- or HA-supplemented diets was higher than in the control rats; however, this result needs further confirmation.

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Cover Acta Veterinaria Hungarica
Acta Veterinaria Hungarica
Print ISSN:
0236-6290
Online ISSN:
1588-2705

Senior editors

Editor-in-Chief: Ferenc BASKA

Editorial assistant: Szilvia PÁLINKÁS

 

Editorial Board

  • Mária BENKŐ (Acta Veterinaria Hungarica, Budapest, Hungary)
  • Gábor BODÓ (University of Veterinary Medicine, Budapest, Hungary)
  • Béla DÉNES (University of Veterinary Medicine, Budapest Hungary)
  • Edit ESZTERBAUER (Veterinary Medical Research Institute, Budapest, Hungary)
  • Hedvig FÉBEL (University of Veterinary Medicine, Budapest, Hungary)
  • László FODOR (University of Veterinary Medicine, Budapest, Hungary)
  • János GÁL (University of Veterinary Medicine, Budapest, Hungary)
  • Balázs HARRACH (Veterinary Medical Research Institute, Budapest, Hungary)
  • Peter MASSÁNYI (Slovak University of Agriculture in Nitra, Nitra, Slovak Republic)
  • Béla NAGY (Veterinary Medical Research Institute, Budapest, Hungary)
  • Tibor NÉMETH (University of Veterinary Medicine, Budapest, Hungary)
  • Zsuzsanna NEOGRÁDY (University of Veterinary Medicine, Budapest, Hungary)
  • Dušan PALIĆ (Ludwig Maximilian University, Munich, Germany)
  • Alessandra PELAGALLI (University of Naples Federico II, Naples, Italy)
  • Kurt PFISTER (Ludwig-Maximilians-University of Munich, Munich, Germany)
  • László SOLTI (University of Veterinary Medicine, Budapest, Hungary)
  • József SZABÓ (University of Veterinary Medicine, Budapest, Hungary)
  • Péter VAJDOVICH (University of Veterinary Medicine, Budapest, Hungary)
  • János VARGA (University of Veterinary Medicine, Budapest, Hungary)
  • Štefan VILČEK (University of Veterinary Medicine in Kosice, Kosice, Slovak Republic)
  • Károly VÖRÖS (University of Veterinary Medicine, Budapest, Hungary)
  • Herbert WEISSENBÖCK (University of Veterinary Medicine, Vienna, Austria)
  • Attila ZSARNOVSZKY (Szent István University, Gödöllő, Hungary)

ACTA VETERINARIA HUNGARICA

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H-1078 Budapest, István utca 2., Hungary

Phone: (36 20) 560 4183 (ed.-in-chief) or (36 1) 478 4100/8430 (editor)

E-mail: acta.veterinaria@univet.hu (ed.-in-chief)

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2023  
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Journal Impact Factor 0.7
Rank by Impact Factor Q3 (Veterinary Sciences)
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Acta Veterinaria Hungarica
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Acta Veterinaria Hungarica
Language English
Size A4
Year of
Foundation		 1951
Volumes
per Year		 1
Issues
per Year		 4
Founder Magyar Tudományos Akadémia
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-6290 (Print)
ISSN 1588-2705 (Online)

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