病虫害对桑叶营养成分变化及家蚕经济性状的影响  

Effects of disease and insect pests on nutrient composition of mulberry leaves and economic characters of silkworm

作　　者：粟思源 张智勇 胡春梅[1] 刘彬斌[1] 刘俊凤[1] 王红林 寇晶[1] 吴建梅[1] SU Siyuan;ZHANG Zhiyong;HU Chunmei;LIU Binbin;LIU Junfeng;WANG Honglin;KOU Jing;WU Jianmei(Sericultural Research Institute,Sichuan Academy of Agricultural Sciences(Institute of Special Economic Animals and Plants,Sichuan Academy of Agricultural Sciences),Nanchong 637000,Sichuan)

机构地区：[1]四川省农业科学院蚕业研究所(四川省农业科学院特种经济动植物研究所),四川南充637000

出　　处：《浙江农业科学》2024年第11期2733-2737,共5页Journal of Zhejiang Agricultural Sciences

基　　金：四川蚕桑创新团队“特种蚕品种资源与遗传育种研究岗位”(SCCXTD-2023-17);四川省“十四五”农作物及家畜育种攻关项目(2021YFY20024);四川省农业科学院“1+9”揭榜挂帅科技攻关项目(1+9KJGG004)。

摘　　要：该研究旨在分析病虫害桑叶营养成分变化及其对家蚕生长发育与经济性状的影响,探讨利用受害桑叶养蚕,减轻损失的可能性。分别采集正常桑叶、桑褐斑病害桑叶和红蜘蛛虫害桑叶,检测各组桑叶的营养成分。通过养蚕试验分析病虫害桑叶对家蚕的影响。结果显示,病害桑叶中的粗脂肪和可溶性糖含量极显著高于正常桑叶,而氨基酸总量和粗纤维含量极显著低于正常桑叶;虫害桑叶的氨基酸总量和粗蛋白含量显著高于正常桑叶,而粗脂肪和可溶性糖含量极显著低于正常桑叶。养蚕试验结果显示,病虫害桑叶对家蚕茧质的影响较大,但对万头蚕产茧量、生长发育的影响不显著。桑叶遭受桑褐斑病和红蜘蛛为害后产量受损,但仍具有饲用价值;及时采用饲蚕,可以减少损失、提高产量。In this study,the effects of disease and insect pests on nutrient composition of mulberry leaves and the growth and economic characteristics of silkworm were analyzed,and the possibility of using disease and pest affected mulberry leaves to reduce the loss of silkworm was discussed.Normal mulberry leaves,brown spot mulberry leaves and red spider insect mulberry leaves were collected to detect the nutritional components of each group.The effects of disease and pest affected mulberry leaves on silkworm were analyzed through silkworm rearing experiments.The results showed that the contents of crude fat and soluble sugar in diseased mulberry leaves were significantly higher than those in normal mulberry leaves,while the contents of total amino acid and crude fiber were significantly lower than those in normal mulberry leaves.The contents of total amino acid and crude protein in pest affected mulberry leaves were significantly higher than those in normal mulberry leaves,while the contents of crude fat and soluble sugar were significantly lower than those in normal mulberry leaves.The results of silkworm rearing experiments showed that mulberry leaves had a great effect on cocoon quality,but had no significant effect on cocoon production and growth of ten thousand silkworm.The yield of mulberry leaves was damaged by brown spot and red spider,but it still had feeding value.Timely harvest for silkworm rearing can reduce loss and increase yield.

关 键 词：病虫害 桑叶 营养成分 家蚕 经济性状 

分 类 号：S888.7[农业科学—特种经济动物饲养]