温血动物组织的过冷现象及其化学热力学原理

THE SUPEROOLING PHENOMENA OF HOMOITHERM TISSUE AND ITS PRINCIPLE OF CHENICAL THERMODYNAMICS

在进行温血运物抗冻能力的研究中,发现鼠尾组织在一定条件下可发生过冷现象。实验表明,相同条件,降温速度越慢,鼠尾组织的过冷点越低。在深度低温骤冷的情况下,不出现过冷现象;鼠尾组织的过冷点亦和鼠龄有关,同一冷冻条件,6月龄的鼠尾组织过冷点明显低于2月龄和22月龄的鼠尾组织。动物组织的过冷性质是动物进化过程中形成的抗寒特性,因此它和组织自身的化学热力学性质有关。

In the stubies of antifreezing ability for homthermal animal,found that the supercooling phenomena of homothermal animal tissue occurs unber given condition.The experiments show that the more slow is cooling rate, the more low supercooling point has the tissue of rat tail,in identical conbitions.The supercooling phenomena does not occurs in the condition of shock cooling.The point of supercooling of rat tail tissue relate to rat age, in ides tical freezing conbition,for the tissue afzrat tail being 6 months of age this begree is lower than 2 months anb 22 months.