典型文献
Implication and challenges of direct-fed microbial supplementation to improve ruminant production and health
文献摘要：
Direct-fed microbials (DFMs) are feed additives containing live naturally existing microbes that can benefit animals' health and production performance. Due to the banned or strictly limited prophylactic and growth promoting usage of antibiotics, DFMs have been considered as one of antimicrobial alternatives in livestock industry. Microorganisms used as DFMs for ruminants usually consist of bacteria including lactic acid producing bacteria, lactic acid utilizing bacteria and other bacterial groups, and fungi containing Saccharomyces and Aspergillus. To date, the available DFMs for ruminants have been largely based on their effects on improving the feed efficiency and ruminant productivity through enhancing the rumen function such as stabilizing ruminal pH, promoting ruminal fermentation and feed digestion. Recent research has shown emerging evidence that the DFMs may improve performance and health in young ruminants, however, these positive outcomes were not consistent among studies and the modes of action have not been clearly defined. This review summarizes the DFM studies conducted in ruminants in the last decade, aiming to provide the new knowledge on DFM supplementation strategies for various ruminant production stages, and to identify what are the potential barriers and challenges for current ruminant industry to adopt the DFMs. Overall literature research indicates that DFMs have the potential to mitigate ruminal acidosis, improve immune response and gut health, increase productivity (growth and milk production), and reduce methane emissions or fecal shedding of pathogens. More research is needed to explore the mode of action of specific DFMs in the gut of ruminants, and the optimal supplementation strategies to promote the development and efficiency of DFM products for ruminants.
文献关键词：
中图分类号：
作者姓名：
Yajing Ban;Le Luo Guan
作者机构：
Department of Agricultural,Food and Nutritional Science,University of Alberta,Edmonton,Alberta T6G 2P5,Canada
文献出处：
引用格式：
[1]Yajing Ban;Le Luo Guan-.Implication and challenges of direct-fed microbial supplementation to improve ruminant production and health)[J].畜牧与生物技术杂志（英文版）,2022(02):316-337
A类：
microbials,DFMs
B类：
Implication,challenges,direct,fed,supplementation,improve,production,health,Direct,are,feed,additives,containing,naturally,existing,microbes,that,can,benefit,animals,performance,Due,banned,strictly,limited,prophylactic,growth,promoting,usage,antibiotics,have,been,considered,one,antimicrobial,alternatives,livestock,industry,Microorganisms,used,ruminants,usually,including,producing,utilizing,other,bacterial,groups,fungi,Saccharomyces,Aspergillus,To,date,available,largely,their,effects,improving,efficiency,productivity,through,enhancing,rumen,function,such,stabilizing,ruminal,fermentation,digestion,Recent,research,has,shown,emerging,evidence,may,young,however,these,positive,outcomes,were,not,consistent,among,studies,modes,action,clearly,defined,This,review,summarizes,conducted,last,decade,aiming,provide,new,knowledge,strategies,various,stages,identify,what,potential,barriers,current,adopt,Overall,literature,indicates,mitigate,acidosis,immune,response,gut,increase,milk,reduce,methane,emissions,fecal,shedding,pathogens,More,needed,explore,specific,optimal,promote,development,products
AB值：
0.528973
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
