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首页> 美国政府科技报告 >Respiratory-Cardiovascular Physiology and Chloroethane Gill Flux in the ChannelCatfish 'Ictalurus punctatus'
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Respiratory-Cardiovascular Physiology and Chloroethane Gill Flux in the ChannelCatfish 'Ictalurus punctatus'

机译：ChannelCatfish'Ictalurus punctatus'中的呼吸 - 心血管生理学和氯乙烷鳃通量

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A fish respirometer-metabolism chamber was used to obtain in vivo respiratory-cardiovascular and chloroethane gill flux data on transected channel catfish (Ictalurus punctatus). Methods used for spinal transection, attachment of an oral membrane (respiratory mask), placement and attachment of blood cannulas and urine catheters are described. Respiratory physiology, cardiac output and chemical extraction efficiencies for 1,1,2,2-tetrachloroethane (TCE), pentachloroethane (PCE), and hexachloroethane (HCE) were determined on 419-990 g catfish. Physiological measurements taken at 24 h were not significantly different from those taken at 48 h and indicated no deterioration of the in vivo preparation. All of these values agreed well with literature values on untransected channel catfish, except for Hct which was lower for cannulated animals used in this study. Overall, these data provide strong support for the use of transected channel catfish for in vivo collection of physiological and chemical gill flux data.

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