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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2013 Vol.32 No.5

Study of Oxygen Consumption Rate and Asphyxiation Point of Paracobitis variegatus
Author of the article:DU Zongjun1, ZOU Jianping2, LI Zhengjie1, LIAO Guoping1, HUANG Xiaoli1*
Author's Workplace:(1. Department of Aquaculture, College of Animal Science and Technology, Sichuan Agricultural University, Ya’an, Sichuan Province 625014, China; 2. Sichuan (JiangBian) Power Plant of CLP Group, Chengdu 614000, China)
Key Words:Paracobitis variegatus; oxygen consumption rate (OCR); asphyxiation point
Abstract:

The oxygen consumption rate (OCR) and asphyxiation point of Paracobitis variegatus were measured in sealed-fluid water. The results showed that the OCR of P. variegatus decreased with increasing of body weight. The oxygen consumption rate was significantly different with diurnal variation (P<0.05). When the water temperature was 14.0 , the OCR of P. variegatus weighted 4.0 g was 0.1659 mg/(g.h), and the average OCR in day-time (8:30~18:30) and night (20:30~6:30) were 0.1389 mg/(g.h) and 0.1930 mg/(g.h), respectively; the OCR of P. variegatus weighted 7.9 g was 0.1175 mg/(g.h), and the average OCR in day-time and night were 0.1099 mg/(g.h) and 0.1251 mg/(g.h), respectively; the OCR of P. variegatus weighted 9.5 g was 0.0534 mg/(g.h), and the average OCR in day-time and night were 0.0509 mg/(g.h) and 0.0559 mg/(g.h), respectively. The asphyxiation point was 1.137 mg/L for P. variegatus weighted 9.5 g. The current study shows that Pvariegatus is a kind of species with high oxygen consumption rate and asphyxiation point.

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