畜牧与兽医2024，Vol.56Issue(9)：56-60,5.
枯草芽胞杆菌对大肠杆菌返饲母猪繁殖性能和健康度的影响
Effects of Bacillus subtilis on reproductive performance and health of gestating sows after back-feeding with Escherichia coli
摘要
Abstract
This study was to investigate the effects of Bacillus subtilis on reproductive performance and health status of gestating sow back-fed with Escherichia coli in the feed.Twenty Large White sows with similar farrowing dates were obtained and randomly divided into two groups with 10 sows in each group,which were the control group and the experimental group,respectively.On the 35th day before delivery,each sow in the experimental group was fed with a diet added with 5 g Bacillus subtilis daily until weaning.On the 21st day before delivery,the sows in both groups were back-fed with Escherichia coli in the diet.One day before delivery,the ear edge venous blood samples of 5 sows in each group were randomly collected for the detection of immune indexes and antioxidant indexes.Then,the reproduction performance,pig-let growth performance data,mammary gland health index,endometritis index and fecal index of the sows during lactation were recorded.The results showed that,compared with the control group,the addition of Bacillus subtilis effectively reduced the number of stillbirths and in-creased the number of live births of the sows fed with Escherichia coli in the diet(P＜0.05),weakened the levels of oxidative stress and in-flammation in the prenatal sows,lowered the incidence of postpartum mastitis and postpartum endometritis(P＜0.05)in them,and raised the weaning litter weight and weaning survival rate of the offspring(P＜0.05).In conclusion,Bacillus subtilis effectively improved the repro-ductive performance and perinatal health of sows back-fed with Escherichia coli in their diet,and reduced the mortality of their offspring dur-ing breastfeeding,which might be a new idea for the prevention and control of Escherichia coli diarrhea of suckling piglets.关键词
枯草芽胞杆菌/大肠杆菌返饲/繁殖性能/氧化应激/炎症Key words
Bacillus subtilis/Escherichia coli feedback/reproduction performance/oxidative stress/inflammation分类
农业科技引用本文复制引用
刘建新,葛雷,屈浩博,黄克和..枯草芽胞杆菌对大肠杆菌返饲母猪繁殖性能和健康度的影响[J].畜牧与兽医,2024,56(9):56-60,5.基金项目
国家自然科学基金联合基金重点项目(U22A20524) （U22A20524）
