人工饲料饲育家蚕5龄期的饲料效率研究  

Study on Feed Efficiency of Bombyx mori at 5th Instar Reared with Artificial Feed

作　　者：王安皆[1] 周丽霞[1] 华丽峰[1] 宋洪燕[1] WANG Anjie;ZHOU Lixia;HUA Lifeng;SONG Hongyan(Shandong Institute of Sericultural Research,Yantai,Shandong 264002,China)

机构地区：[1]山东省蚕业研究所,山东烟台264002

出　　处：《贵州农业科学》2024年第2期90-95,共6页Guizhou Agricultural Sciences

基　　金：财政部和农业农村部国家现代农业产业技术体系“烟台综合试验站”(CARS-18);中央引导地方科技发展专项资金项目“桑树多元化利用关键技术示范与推广”(YCZX2021073);山东省蚕桑产业技术体系“育种岗位”(SDAIT-18)。

摘　　要：【目的】探明人工饲料饲育家蚕5龄期饲料效率与全龄桑叶育间的差异,为家蚕人工饲料的改进和饲育技术的优化提供技术支撑。【方法】以全龄桑叶育为对照(CK),研究家蚕5龄期不同饲育方式[1~5龄饲料育(5龄饲料育)、1~4龄饲料育5龄桑叶育(5龄桑叶育)]饲料效率间的差异。【结果】5龄饲料育家蚕第3天、第4天、第5天蚕体质量增量高于CK,第2天、第3天、第4天、第6天消化量低于CK,第2天、第3天、第4天、第5天体质转化率高于CK。5龄饲料育和5龄桑叶育的全茧转化效率、全茧生产效率、茧层转化效率和茧层生产效率均低于CK,5龄饲料育较CK分别低0.53百分点、0.10百分点、0.25百分点和0.08百分点,5龄桑叶育较CK分别低0.38百分点、0.14百分点、0.14百分点和0.06百分点;与5龄桑叶育相比,5龄饲料育除全茧生产效率高0.04百分点外,全茧转化效率、茧层转化效率、茧层生产效率分别低0.15百分点、0.11百分点和0.02百分点。【结论】全龄人工饲料育家蚕5龄期饲料效率低于全龄桑叶育,人工饲料饲育家蚕在饲料效率方面与全龄桑叶育有一定差距。【Objective】The differences in feed efficiency of 5th-instar silkworms reared with artificial feed and silkworms reared with mulberry leaves during 1st−5th instar were explored,which provided the technical support for the improvement of artificial feed and optimization of reared techniques for Bombyx mori.【Method】Taking the silkworms raised with mulberry leaves during 1st−5th instar as CK,the differences in feed efficiency of 5th instar silkworms fed with different patterns[artificial feed during 1st−5th instar(5th instar artificial feed),artificial feed during 1st−4th instar and mulberry leaves during 5th instar(5th instar mulberry leaves)]were studied.【Result】The weight increment of 5th-instar artificial fed silkworms were higher than CK on day 3,day 4 and day 5,and the digestion was lower than CK on day 2,day 3,day 4 and day 6,and the physical conversion rate was higher than CK on day 2,day 3,day 4 and day 5.The whole cocoon conversion efficiency,whole cocoon production efficiency,cocoon layer conversion efficiency and cocoon layer production efficiency of 5th-instar silkworms reared with artificial feed and mulberry leaves were lower than CK,5thinstar artificial fed silkworms were 0.53 percent points,0.10 percent points,0.25 percent points,and 0.08 percent points lower than CK,respectively,while silkworms fed with mulberry leaves at 5th instar were 0.38 percent points,0.14 percent points,0.14 percent points and 0.06 percent points lower than CK,respectively.Comparing with silkworm fed with mulberry leaves at 5th instar,the whole cocoon production efficiency of 5th-instar artificial fed silkworms increased by 0.04 percent points,while the whole cocoon conversion efficiency,cocoon layer conversion efficiency,and cocoon layer production efficiency decreased by 0.15 percent points,0.11 percent points and 0.02 percent points,respectively.【Conclusion】The feed efficiency of silkworms at 5th instar reared with artificial feed during 1st−5th is lower than that of silkworms raised on mulberry l

关 键 词：家蚕 人工饲料 饲料效率 体质转化率 茧质成绩 

分 类 号：S883[农业科学—特种经济动物饲养]