实验动物是多种学科领域内研究工作所必需的实验材料。实验动物发展与否和现代医学发展是紧密相连的,它在现代医学、生物学、药物学、兽医学、国防科学等各个领域中都占有极为重要的地位。实验动物的优劣直接影响到实验结果的正确性和可靠性。只有培育出健康、无病、标准的实验动物,实验才能取得予期的结果。为此,就必须首先在遗传学方面进行控制,使实验动物“纯 Laboratory animals are necessary experimental materials in many fields of research. The development of experimental animals is closely linked with the development of modern medicine. It occupies a very important position in various fields such as modern medicine, biology, pharmacy, veterinary science and national defense science. The merits of experimental animals directly affect the accuracy and reliability of experimental results. Only by nurturing a healthy, disease-free, standard laboratory animal will the experiment produce the desired result. To this end, we must first control in genetics, so that experimental animals "pure