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First published online January 27, 2004
Journal of Experimental Biology 207, 777-786 (2004)
Published by The Company of Biologists 2004
doi: 10.1242/jeb.00813
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Nitrogen metabolism in the African lungfish (Protopterus dolloi) aestivating in a mucus cocoon on land

Shit F. Chew1,*, Noelle K. Y. Chan1, Ai M. Loong2, Kum C. Hiong2, Wai L. Tam2 and Yuen K. Ip2

1 Natural Sciences, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616, Republic of Singapore
2 Department of Biological Sciences, National University of Singapore, 10 Kent Ridge Road, Singapore 117543, Republic of Singapore



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  		Fig. 1. A specimen of P. dolloi aestivating in a dried mucus cocoon on land in the laboratory.

 


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  		Fig. 2. Ammonia contents (µmol g–1) in the muscle, liver, brain and gut of P. dolloi after aestivating for 6 days or 40 days. Values are means + S.E.M. *Significantly different from the corresponding control (P<0.05). {dagger}Significantly different from the 6-day control (P<0.05).

 


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  		Fig. 3. Urea contents (µmol g–1) in the muscle, liver, brain and gut of P. dolloi after aestivating for 6 days or 40 days. Values are means + S.E.M. *Significantly different from the corresponding control (P<0.05). {dagger}Significantly different from the 6-day control (P<0.05).

 

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© The Company of Biologists Ltd 2004