Effect of temperature on blood parameters of the salamander <Emphasis Type="Italic">Batrachupems tibetanus</Emphasis> (Schmidt, 1925) (Amphibia: Hynobiidae) |
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Authors: | Jigang Xia Xiaochen Li |
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Institution: | (1) Departament de Fisiologia (Centre de Referència i Desenvolupament en Aqüicultura de la Generalitat de Catalunya, CRAC), Facultat de Biologia, Universitat de Barcelona, Avinguda Diagonal 645, Barcelona, E-08028, Spain; |
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Abstract: | To better understand how Batrachupems tibetanus responds to different temperature regimes in the blood parameters and to estimate the change in plasma cortisol level in
this species exposed to different temperatures, the animals were stochastically divided into three groups and exposed respectively
to 4.6°C, 14.6°C and 19.6°C for 12 days. The concentrations of glucose, total protein, albumin, triacylglycerol, Ca2+, K+, Na+, Cl−, and plasma cortisol level were measured respectively. There was no significant difference between the plasma cortisol level
of the control group and the experiment groups. Glucose level at 4.6°C and 19.6°C was significantly lower than glucose level
at 14.6°C. The plasma triacylglycerol level was significantly influenced by acclimation temperature. The concentration of
total protein, albumin, globulin and the ratio between albumin and globulin were not significantly influenced by temperature
when compared with control group. There was no significant change in concentration of Ca2+ at different temperatures. The concentration of K+ was significantly influenced by temperature. Plasma K+ level significantly increased at 19.6°C. The plasma Na+ level and Cl− were significantly influenced by temperature. Na+: Cl− ratio was significantly influenced by temperature. Therefore, glucose, triacylglycerol, Na+ and Cl− levels could be considered as indicators of thermal stress in B. tibetanus; plasma cortisol, albumin, globulin levels, and albumin/globulin ratio are not influenced by temperature. |
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