首页|Supplementation of Lycium barbarum residue increases the growth rate of Tan sheep by enhancing their feed intake and regulating their rumen microbiome and metabolome
Supplementation of Lycium barbarum residue increases the growth rate of Tan sheep by enhancing their feed intake and regulating their rumen microbiome and metabolome
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国家科技期刊平台
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Lycium barbarum residue(LBR),a by-product of L.barbarum processing,is packed with bioactive components and can be potentially utilized as a feed additive in animal husbandry.However,the fundamental understanding of its effectiveness on livestock animals is still lacking,particularly in ruminants.To explore the effects of LBR on the growth performance,rumen fermentation parameters,ruminal microbes and metabolites of Tan sheep,sixteen fattening rams(aged 4 mon)were fed a basal diet(CON,n=8)or a basal diet supplemented with 5％LBR(LBR,n=8).The experiment lasted for 70 d,with 10 d adaptation period and 60 d treatment period.The results showed that the LBR enhanced the average daily feed intake,average daily gain(P＜0.05),and ruminal total volatile fatty acids(P＜0.01)while decreasing ammonia-nitrogen concentration and rumen pH value(P＜0.05).Additionally,the LBR improved the relative abundances of Prevotella,Succiniclasticum,Ruminococcus,Coprococcus,Selenomonas,and Butyrivibrio(P＜0.05)and reduced the relative abundances of Oscillospira and Succinivibrio(P＜0.05).The LBR altered the ruminal metabolome(P＜0.01)by increasing the abundances of ruminal metabolites involved in amino acids(e.g.,L-proline,L-phenylalanine,L-lysine,and L-tyrosine),pyrimidine metabolism(e.g.,uridine,uracil,and thymidine),and microbial protein synthesis(e.g.,xanthine and hypoxanthine).In conclusion,LBR had positive effects on the growth rate of Tan sheep as well as on rumen fermentation parameters,rumen microbiome and rumen metabolome.
College of Forestry and Prataculture,Ningxia University,Yinchuan 750021,China
Jilin Provincial Key Laboratory of Grassland Farming,Northeast Institute of Geography and Agoecology,Chinese Academy of Sciences,Changchun 130102,China
State Key Laboratory of Animal Nutrition/College of Animal Science and Technology,China Agricultural University,Beijing 100193,China
College of Animal Science and Technology,Ningxia University,Yinchuan 750021,China
Nutrigenomics and Growth Biology Laboratory,Department of Animal Sciences,Washington State University,Pullman,WA 99164,USA
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National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaKey Research and Development Program of Ningxia Hui Autonomous Region,ChinaTop Discipline Construction Project of Pratacultural ScienceScience and Technology Development Project of Jilin Province,ChinaTechnology Cooperation High-Tech Industrialization Project of Jilin Province,China and the Chinese Academy of Sciences
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