中国畜牧兽医2025，Vol.52Issue(10)：4614-4626,13.DOI:10.16431/j.cnki.1671-7236.2025.10.008
苜蓿多糖对妊娠母猪繁殖性能、抗氧化能力、免疫功能和粪便菌群的影响
Effects of Alfalfa Polysaccharides on Reproductive Performance,Antioxidant Capacity,Immune Function and Fecal Microbiota in Pregnant Sows
摘要
Abstract
[Objective]The purpose of this experiment was to explore the effects of different concentrations of alfalfa polysaccharides(APS)to the diet on serum hormone indexes,antioxidant capacity,immune function,reproductive performance and fecal flora of pregnant sows.[Method]A total of 90 pregnant sows(PIC,parity 3-4)with similar genetics,body condition,and backfat thickness,were randomly assigned to six groups using a single-factor completely randomized design.They were respectively the control group(CON)and the 200,400,600,800 and 1 000 mg/kg APS groups(experimental groups A,B,C,D and E),with 15 replicates in each group and one pig in each replicate.The trial included a 10-day pre-trial(gestation days 45-55)and an 80-day main trial(gestation day 55 to weaning).On the morning of the 55th day of the gestation before feeding,6 pigs in each group were randomly selected for blood collection through the anterior vena cava to determine serum biochemical,antioxidant capacity and immune function indicators.During the experiment,production indicators such as the total litter size of sows,total number born,and the weaning litter weight were recorded.Milk samples were collected on postpartum days 1 and 8 for the routine components analysis.The fecal conditions of sows were observed and the scores were recorded on gestation days 60,80 and 110.From gestation days 111 to 113,6 pigs were randomly selected from each group to collect fresh fecal samples and determine the diversity of fecal microbiota.[Result]Compared with CON group,①The total antioxidant capacity in the serum of pregnant sows in groups C and D increased significantly(P＜0.5).The serum IgM content of sows in group B increased significantly(P＜0.05).②The total litter size and total number born of pregnant sows in group B,and the average weight and average daily weight gain of weaned piglets in groups C and D were significantly increased(P＜0.5).③The lactose content in the colostrum of sows in groups A,B,C,D and E increased significantly(P＜0.05).The contents of milk protein in normal milk of groups B and C,and the contents of non-fat milk solids and dry matter in normal milk of group C were significantly increased(P＜0.05).④The fecal scores of sows in each experimental group at 110 days of gestation were significantly increased(P＜0.5).⑤At the phylum level,the relative abundance of Firmicutes in fecal of sows ingroup A increased significantly(P＜0.05).At the genus level,the relative abundances of Escherichia-Shigella in fecal of sows in groups A and B,and Clostridium in groups A,B,C and D were significantly decreased(P＜0.05).The relative abundance of Christensenellaceae_R-7_group and Prevotella in fecal of sows in groups A and B increased significantly(P＜0.05).[Conclusion]Under this experimental condition,dietary supplementation with 600 mg/kg APS significantly improved antioxidant capacity,immune function,and reproductive performance in gestating sows,while concurrently enhancing milk quality,alleviating constipation,and optimizing fecal microbiota diversity.关键词
妊娠母猪/苜蓿多糖/繁殖性能/抗氧化能力/粪便菌群Key words
pregnant sow/alfalfa polysaccharides/reproductive performance/antioxidant capacity/fecal microbiota分类
农业科技引用本文复制引用
魏海波,刘宗正,刘迎春,孙曙光,陈玥如,文凤云..苜蓿多糖对妊娠母猪繁殖性能、抗氧化能力、免疫功能和粪便菌群的影响[J].中国畜牧兽医,2025,52(10):4614-4626,13.基金项目
2024年山东省农业重大技术协同推广计划-畜禽养殖节能增效绿色生产技术示范与推广(SDNYXTTG-2024-024) （SDNYXTTG-2024-024）
2025年青岛市农业基础科研能力提升专项项目(青农财[2025]1号) （青农财[2025]1号）
