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Bioaccumulation of Metals inAfrican Brush-tailed Porcupine, Atherurus africanus (Gray, 1842) in the Tropical Rainforests of Ibadan, Oyo State, Nigeria

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Last updated: 03 Jan 2025

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Abstract

Wildlife meat is an important source of protein in tropical and subtropical regions. Samples of African brush-tailed porcupine (Atherurus africanus), a wildlife meat source, were procured from Oluwo Market, Epe, Epe Local Government Area (L.G.A.), Lagos and Odo Ona Kekere in Oluyole L.G.A. Ibadan, Nigeria. Trace metals such as zinc, cadmium, vanadium, barium, nickel, copper, lead, cobalt, chromium, and manganese in the liver and intestine and the associated implications on the lipid profile, and antioxidant biomarkers were investigated. The concentrations of all the metals in the liver and intestine of the porcupines were below the established FEPA standard of 100mg/kg. Zinc> barium> vanadium was the order of significant bioaccumulation of metals in the liver of A. africanus.
             The other metals poorly bioaccumulated in the organs, with the liver having bioaccumulation factors lower than 1. In the intestine, only barium was significantly bioaccumulated, while the other metals bioaccumulation factors lower than 1. The levels of triglyceride and superoxide dismutase (SOD) in the intestine were much higher than the level detected in the liver. The bioaccumulation rates of zinc and vanadium, coupled with the correlation of the metals with the indices of oxidative stress and dyslipidemia might be a prognosis worthy of monitoring. In the intestine, protein had strong negative correlations relationships with SOD (-0.73), and catalase (-0.84). This indicated the tendencies of damage of the cell membrane proteins due to an increased antioxidant defense system. The results presented did not implicate barium in the intestine. In natural environment, multiple factors might be responsible for the concerns detected in the intestine of the animal.
           Further study is recommended to determine the leading factors in the multi-stress conditions of the porcupines. This shall be of paramount benefit to the conservation of the animal and the protection of the consumers.  

DOI

10.21608/eajbsz.2023.353926

Keywords

trace metals, threshold of essential, multi-stress conditions, bioaccumulation, organ-specificity

Authors

First Name

Ayodele

Last Name

Titilayo

MiddleName

Elizabeth

Affiliation

Department of Zoology, University of Lagos, Akoka, Lagos State, Nigeria.

Email

-

City

Nigeria

Orcid

-

First Name

Akeredolu

Last Name

Excellence

MiddleName

-

Affiliation

Department of Zoology, University of Lagos, Akoka, Lagos State, Nigeria.

Email

-

City

Nigeria

Orcid

-

First Name

Fatsuma

Last Name

Olaleru

MiddleName

-

Affiliation

Department of Zoology, University of Lagos, Akoka, Lagos State, Nigeria.

Email

folaleru@unilag.edu.ng

City

Nigeria

Orcid

0000-0002-3362-8668

First Name

Soladoye

Last Name

Iwajomo

MiddleName

B.

Affiliation

Department of Zoology, University of Lagos, Akoka, Lagos State, Nigeria.

Email

-

City

Nigeria

Orcid

-

First Name

Akinsanya

Last Name

Bamidele

MiddleName

-

Affiliation

Department of Zoology, University of Lagos, Akoka, Lagos State, Nigeria.

Email

-

City

Nigeria

Orcid

-

First Name

Isibor

Last Name

Omoregie

MiddleName

Patric

Affiliation

Department of Biological Science, Covenant University, Ota, Ogun State.

Email

-

City

Nigeria

Orcid

-

Volume

15

Article Issue

2

Related Issue

42400

Issue Date

2023-12-01

Receive Date

2023-08-08

Publish Date

2023-12-31

Page Start

185

Page End

198

Print ISSN

2090-0759

Online ISSN

2090-0821

Link

https://eajbsz.journals.ekb.eg/article_353926.html

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https://eajbsz.journals.ekb.eg/service?article_code=353926

Order

353,926

Type

Original Article

Type Code

672

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences, B. Zoology

Publication Link

https://eajbsz.journals.ekb.eg/

MainTitle

Bioaccumulation of Metals inAfrican Brush-tailed Porcupine, Atherurus africanus (Gray, 1842) in the Tropical Rainforests of Ibadan, Oyo State, Nigeria

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Article

Created At

24 Dec 2024