African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Short Communication

Toxicity of Parkia biglobosa and Raphia vinifera extracts on Clarias gariepinus juveniles

Fafioye, O.O.1* Adebisi, A.A.2 and Fagade, S.O.2
1Department of Biological Sciences, Ogun State University, P.M.B 2002, Ago – Iwoye, Nigeria. 2Department of Zoology, University of Ibadan, Nigeria.
Email: [email protected]

  •  Accepted: 29 September 2004
  •  Published: 30 November 2004

Abstract

Acute toxicity tests were carried out with aqueous and ethanolic extracts of two botanicals on Clarias gariepinus juveniles. 96-h LC50 values for Parkia biglobosaaqueous (AEPB) and ethanolic extracts (EEPB) were 2.8 and 2.4 ppm, respectively. While for Raphia vinifera aqueous (AERV) and ethanolic extracts (EERV), the values were 3.4 and 3.2 ppm, respectively. The resulting 96-h LC50 values showed that extracts of P. biglobosa were more potent than the extracts of R. vinifera and that EEPB was the most toxic. Histopathological changes in liver and gill of exposed fish showed subtle cellular damages like necrosis, lesions, oedema and hepatocytes.

 

Key words: Botanicals, toxicity, juveniles, Clarias gariepinus.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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