饲料研究2024，Vol.47Issue(17)：84-88,5.DOI:10.13557/j.cnki.issn1002-2813.2024.17.016
菌酶协同固态发酵羽毛粉生产蛋白饲料的工艺研究
Research on process of producing protein feed by solid-state fermentation of feather meal with microbial enzyme synergy
摘要
Abstract
The study explored the feasibility of producing protein feed by microbial enzyme synergy fermentation of feather meal and to determine the process parameters for this production.The keratin-degrading bacterial strains selected from the laboratory were combined with commercially available keratinase enzyme preparations to utilize microbial enzyme synergy in solid-state fermentation of feather meal.The in vitro pepsin digestibility was used as the index to analyze the fermentation time,inoculation amount,microbial enzyme ratio,and water addition through single-factor and orthogonal test analysis.The results showed that the optimal fermentation process was obtained:The water addition to feather meal was 45％,the microbial enzyme ratio was 1∶1,the inoculation amount was 6％,and the fermentation time was 7 days.After fermentation,the in vitro pepsin digestibility of feather meal was 63.97％,which was significantly improved by 15.22％compared to before fermentation(P＜0.01),and the soluble protein content was 3.51 g/L,which was significantly increased by 80％compared to before fermentation(P＜0.05).The study indicates that under the optimal process parameters,using microbial enzyme synergy in solid-state fermentation of feather meal can efficiently produce protein feed and enhance the feed value of feather meal.关键词
羽毛粉/菌酶协同/固态发酵/蛋白饲料Key words
feather meal/microbial enzyme synergy/solid-state fermentation/protein feed分类
农业科技引用本文复制引用
贾小平,董宝花,龚建刚,刘芳宇,何俊鑫,王琪,冯志华,张海华..菌酶协同固态发酵羽毛粉生产蛋白饲料的工艺研究[J].饲料研究,2024,47(17):84-88,5.基金项目
河北农业大学2022-2023大学生创新创业训练计划项目(项目编号:2022047) （项目编号:2022047）
河北省现代农业产业技术体系蛋鸡肉鸡(家禽)营养与饲料(项目编号:HBCT2023210202) （家禽）
河北省重点研发计划项目乡村振兴技术创新专项(项目编号22327308D) （项目编号22327308D）
