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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Jan 2011, 32 (1)                                     Back


nstantaneous and historical temperature effects on a-pinene

Utilization of lipids during aestivation of the African lungfish, Protopterus annectens

 

Author Details

 

A.I. Okafor

Department of Animal and Environmental Biology, Abia State University, Uturu - 480 001, Nigeria

C.D. Nwani

(Corresponding author)

National Bureau of Fish Genetic Resources, Indian Institute of Agricultural Research, Lucknow - 226 002, India

e-mail: didigwunwani@yahoo.com

F.O. Okereke

Department of Animal and Environmental Biology, Abia State University, Uturu - Nigeria

 

Publication Data

Paper received:

21 April 2009

 

Revised received:

22 January 2010

 

Accepted:

06 March 2010

 

Abstract

Sequential alterations of body weights as well as total lipids, triglycerides, cholesterol and ketone body levels in the blood of Protopterus annectens during twelve month duration of aestivation were investigated.? The results revealed that after the first trimester of dormancy, there was significant body weight reduction (p<0.05) coupled with significant hypolipodaemia, hypotriacylgly-cerolaemia and hypocholesterolaemia respectively (p<0.05) but without significant ketonaemia (p<0.05).? The total lipid, triglyceride, cholesterol and body weight reductions continued through the second, third and fourth trimesters of aestivation respectively (p<0.05) but with serum ketone body levels remaining unaltered (p<0.05).? Thus, the utilization of lipids as a source of energy during aestivation of P. annectens does not lead to ketone body accumulation.

 

Key words

Total lipids, Triglycerides, Cholesterol, Ketone bodies

 

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