关键词: 实验动物, 垫料, 物理化学特性

Abstract: Objective Compare and study the physical characteristics and sanitary indexes of the moisture content, hygroscopicity, heat preservation and hygienic of wheat straw ( after air explosion treatment) , corncob, shaving and paper, so as to provide scientific basis for the development and application of new type of wheat straw in laboratory animal bedding materials. Method According to the local standards of Beijing, the moisture content, water absorption and hygienic indexes of wheat straw bedding materials and other three bedding materials were tested. Result The moisture content and water absorption of wheat straw, the heavy metal residue of wheat straw and the wheat straw pad meet the standard. Conclusion Wheat straw bedding material has good water absorption and heat preservation performance, has the advantages of wide source, low price, easy preservation, and can reduce the consumption of forest resources, is conducive to environmental protection, and can be used as industrial promotion and development.

Key words: laboratory animal, bedding, physical characteristics