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Excretion of dietary zinc in mammals (rats) fed overdoses of zinc lactate and infected with tapeworms

V. Sloup

V. Sloup

Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life SciencesSuchdol, Czech Republic
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Sloup, V.
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I. Jankovská

I. Jankovská

Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life SciencesSuchdol, Czech Republic
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Jankovská, I.
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J. Száková

J. Száková

Department of Agroenvironmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life SciencesSuchdol, Czech Republic
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Száková, J.
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V. Karešová

V. Karešová

Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life SciencesSuchdol, Czech Republic
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Karešová, V.
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S. Lanková

S. Lanková

Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life SciencesSuchdol, Czech Republic
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Lanková, S.
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S. Sloup

S. Sloup

Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life SciencesSuchdol, Czech Republic
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Sloup, S.
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I. Langrová

I. Langrová

Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life SciencesSuchdol, Czech Republic
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Langrová, I.
  
25 dic 2021
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Pubblicato online: 25 dic 2021
Pagine: 339 - 345
Ricevuto: 19 gen 2021
Accettato: 03 lug 2021
DOI: https://doi.org/10.2478/helm-2021-0038
Parole chiave
© 2021 V. Sloup, I. Jankovská, J. Száková, V. Karešová, S. Lanková, S. Sloup, I. Langrová, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

A comparison of Zn excretion rates (%) in the feces of uninfected control rats (00) and those of control rats (0T) infected with tapeworms (Hymenolepis diminuta). thu, Thursday (samples were taken every Thursday)
A comparison of Zn excretion rates (%) in the feces of uninfected control rats (00) and those of control rats (0T) infected with tapeworms (Hymenolepis diminuta). thu, Thursday (samples were taken every Thursday)

Fig. 2

A comparison between Zn excretion rates (%) in the feces of rats from group M0 (uninfected and fed Zinc lactate) and those of rats from group PT (tapeworm-infected and fed Zinc lactate). *Statistically significant difference between groups M0 a MT, p < 0.05; **Statistically significant difference between groups M0 a MT, p < 0.01; thu, Thursday (samples were taken every Thursday)
A comparison between Zn excretion rates (%) in the feces of rats from group M0 (uninfected and fed Zinc lactate) and those of rats from group PT (tapeworm-infected and fed Zinc lactate). *Statistically significant difference between groups M0 a MT, p < 0.05; **Statistically significant difference between groups M0 a MT, p < 0.01; thu, Thursday (samples were taken every Thursday)

Zinc dosages and levels of Zn excreted in feces (mg) over a 6-week period_

Experimental group Zinc intake (mg/day) Faecal excretion zinc (mg/day) Faecal excretion zinc (%)
00 1.75 ± 0.13 1.22 ± 0.18 73.67
0T 1.71 ± 0.16 1.19 ± 0.19 70.19
M0 20.25 ± 1.12 17.64 ± 2.78 87.2
MT 19.23 ± 1.75 12.90 ± 1.79 64.84

Zinc contents in feed_

Experimental group Number of animals Infection tapeworm Zinc dose (mg/25 g food) Zinc dose/week (mg)
00 6 - 1.75 10.5
0T 6 + 1.75 10.5
M0 6 - 20.5 123
MT 6 + 20.5 123

Composition of ST-1 (commercially available from Velaz Ltd_ CR)_

Moisture (%) 12.5
Nitrogen compounds (%) 24
Fiber (%) 4.4
Lipids (%) 3.4
Ash (%) 6.8
Lysin (mg/kg) 14 000
Methionine (mg/kg) 4 800
Ca (mg/kg) 11 000
P (mg/kg) 7 200
Na (mg/kg) 1 800
Cu (mg/kg) 20
Zn (mg/kg) 70
Se (mg/kg) 0.38
Lingua:
Inglese
Frequenza di pubblicazione:
4 volte all'anno
Argomenti della rivista:
Scienze biologiche, Zoologia, Ecologia, Scienze della vita, altro, Medicina, Medicina clinica, Microbiologia, Virologia ed Epidemiologia infettiva
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