Veterinary Research Forum
Vet Res Forum

Evaluation of bioaccumulation of some heavy metals in liver flukes (Fasciola hepatica and Dicrocoelium dendriticum), and liver samples of sheep

Document Type : Short Communication

Authors

Saeed Khatemeh 1
Abbas Imani Baran 2

1 MSc Graduate, Department of Pathobiology, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran

2 Department of Pathobiology, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran

https://doi.org/10.30466/vrf.2020.135702.3043
Abstract
Different living organisms are used as applicable bioindicators to determine heavy metal pollutions. Recent studies have shown that helminths parasites can be used as efficient environmental sentinels. This study aimed to evaluate Fasciola hepatica and Dicrocoelium dendriticum as bioaccumulators of lead (Pb), chromium (Cr), cadmium (Cd), copper (Cu). For this work. A total of 50 samples (F. hepatica, D. dendriticum, and livers from the infected and uninfected sheep, each of 10 samples) were collected from sheep slaughtered in Tabriz abattoir. One gram of each sample was incinerated and analyzed by Flame Atomic Absorption Spectrometry. The analysis of samples showed that Pb, Cr and Cu values in F. hepatica were higher than those in D. dendriticum, but only the differences of Pb and Cu were significant. The values of heavy metals in F. hepatica were significantly higher than those in the infected livers (except for Cd), while in D. dendriticum, Cr and Cd were only higher. Based on metal levels in livers, it was found that bioconcentration factors (BCFs) of Cr, Pb and Cu for F. hepatica were much more than one, and BCFs of these three metals between two flukes were statistically significant. This study indicated that F. hepatica had a higher bioindicator potential than D. dendriticum to evaluate environmental pollutants by some metals.

Keywords

Bioaccumulation
Dicrocoelium dendriticum
Fasciola hepatica
Heavy metals
Sheep
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Veterinary Research Forum
Volume 13, Issue 4
Autumn 2022
Pages 611-614

  • Receive Date 31 August 2020
  • Revise Date 07 November 2020
  • Accept Date 08 November 2020

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