A feeding experiment was conducted to determine the effects of inoculating alfalfa silage with a ferulic acid esterase-producing inoculum on feed digestibility,rumen fermentation,antioxidant,and immunity status of lactating dairy goats.Twenty dairy goats were distributed into 2 experimental groups consisting of control diet(Lp MTD/1,including Lactobacillus plantarum MTD/1 inoculated silage)against diet con-taining silage treated with ferulic acid esterase-producing L.plantarum A1(Lp A1).Alfalfa silage inoc-ulated with a ferulic acid esterase-producing Lp A1 had better fermentation quality than the Lp MTD/1 inoculation.The application of Lp A1 improved silage antioxidant capacity as indicated by greater total antioxidant capacity(T-AOC),superoxide dismutase(SOD)and glutathion peroxidase(GSH-Px)activities in Lp A1 treated silage versus Lp MTD/1 treatment.Compared with Lp MTD/1 treated group,inoculation of silage with Lp A1 increased apparent total tract digestibility of dietary dry matter,organic matter and crude protein,and ruminal concentrations of total volatile fatty acids,acetate,propionate and isobutyrate as well.The results of current study also demonstrated improved antioxidant capacity and immune performance of dairy goats with Lp A1 inoculation.Feeding Lp A1-treated silage increased dairy goats'serum antioxidase activity,such as T-AOC,SOD,GSH-Px and catalase,and the serum concentration of immunoglobulin A,while decreased tumor necrosis factor α,interleukin(IL)-2 and IL-6.In addition,compared with Lp MTD/1,diet containing alfalfa silage inoculated with Lp A1 endowed dairy goats'milk with greater fat and protein contents,improved dairy goat milk quality without affecting feed efficiency.

Fuhou Li;Baibing Zhang;Yixin Zhang;Xia Zhang;Samaila Usman;Zitong Ding;Lizhuang Hao;Xusheng Guo

State Key Laboratory of Grassland Agro-ecosystems,School of Life Sciences,College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou,730000,China;Probiotics and Biological Feed Research Centre,Lanzhou University,Lanzhou,730000,China;Key Laboratory of Plateau Grazing Animal Nutrition and Feed Science of Qinghai Province,The Academy of Animal and Veterinary Sciences,State Key Laboratory of Plateau Ecology and Agriculture,Qinghai University,Xining,810016,China

动物营养（英文）

[1]Fuhou Li;Baibing Zhang;Yixin Zhang;Xia Zhang;Samaila Usman;Zitong Ding;Lizhuang Hao;Xusheng Guo-.Probiotic effect of ferulic acid esterase-producing Lactobacillus plantarum inoculated alfalfa silage on digestion,antioxidant,and immunity status of lactating dairy goats)[J].动物营养（英文）,2022(04):38-47

inoculating,inoc,isobutyrate,antioxidase

Probiotic,ferulic,esterase,producing,Lactobacillus,plantarum,inoculated,alfalfa,silage,digestion,antioxidant,immunity,status,lactating,dairy,goats,feeding,was,conducted,determine,effects,inoculum,digestibility,rumen,fermentation,Twenty,were,distributed,into,experimental,groups,consisting,control,Lp,MTD,including,against,treated,A1,Alfalfa,had,better,quality,than,inoculation,application,improved,capacity,indicated,by,greater,total,AOC,superoxide,dismutase,glutathion,peroxidase,GSH,Px,activities,versus,treatment,Compared,increased,apparent,tract,dietary,dry,matter,organic,crude,protein,ruminal,concentrations,volatile,fatty,acids,acetate,propionate,well,results,current,study,also,demonstrated,immune,performance,Feeding,serum,activity,such,catalase,immunoglobulin,while,decreased,tumor,necrosis,interleukin,In,addition,compared,containing,endowed,milk,contents,without,affecting,efficiency

0.418016