我国是世界上养蚕最早,茧产量和丝绸出口量最多的国家.然而如何进一步提高桑蚕茧质和桑蚕原种的制种量是当前人们十分关注的两个重要问题.为此,陕西师范大学应用声学研究所与陕西省蚕桑研究所制种场和陕西省农林学校合作进行了“超声对桑蚕的发育影响和增产的研究”.经过三年实验取得了满意的效果: China is the country that has the earliest sericulture, the largest amount of cocoon output and silk exports in the world.However, how to further improve the seed production of silkworm cocoon and silkworm is the two important issues that people pay close attention to.Therefore, University Institute of Applied Acoustics and the Shaanxi Provincial Institute of Sericulture Institute of seedling and Shaanxi Province Agriculture and Forestry School cooperation “ultrasound on the development and production of silkworm research.” After three years of experiments achieved satisfactory results: