Isomaltooligosaccharide and Bacillus regulate the duration of farrowing and weaning-estrous interval in sows during the perinatal period by changing the gut microbiota of sows

作     者：Xueling Gu Jiang Chen Hao Li Zehe Song Ling Chang Xi He Zhiyong Fan Xueling Gu;Jiang Chen;Hao Li;Zehe Song;Ling Chang;Xi He;Zhiyong Fan

作者机构：Engineering Research Center for Feed Safety and Efficient Utilization of Ministry of EducationInstitute of Animal NutritionHunan Agricultural UniversityHunan410128China Hunan Co-Innovation Center of Animal Production SafetyHunan Agricultural UniversityHunan410128China 

出 版 物：《Animal Nutrition》 (动物营养（英文版）)

年 卷 期：2021年第7卷第1期

页      面：72-83页

核心收录：

学科分类：0905[农学-畜牧学] 09[农学] 

基　　金：funding from Double first-class construction project of Hunan Agricultural University(SYL201802009,SYL201802015) the National Key Research and Development Program of China(2017YFD0500506,2016YFD0501209) 

主　　题：Sow Isomaltooligosaccharide Bacillus Perinatal period Duration of farrowing Gut microbiota 

摘      要：This study investigated the effects of isomaltooligosaccharide(IMO)and Bacillus in perinatal diets on the duration of farrowing and post-weaning estrus,serum reproductive hormone concentrations,and gut microbiota and its metabolites of *** sows(n=130)were fed diets without IMO(control,CON group),or diets containing only IMO(IMO group),IMO and Bacillus subtilis(IMOS group),IMO and Bacillus licheniformis(IMOL group),and IMO and *** and ***(IMOSL group),*** results indicate that the duration of farrowing and post-weaning estrus was shorter in sows in the IMOS,IMOL,and IMOSL groups,and the weaning-estrous interval was lower in sows in the IMOL *** addition,the lowest fecal score was observed in the IMOL group during d 106 to 112 of *** in most of the treatment groups had a higher concentration of serum prolactin and prostaglandin at farrowing,but a lower serum concentration of estradiol,oxytocin,and progesterone on d 18 of lactation than sows in the CON *** treatment groups had a higher abundance of Candidatus Methanoplasma and Bacillus and a lower abundance of Escherichia-Shigella in their feces at ***,the treatment groups had higher concentrations of total short-chain fatty acids(SCFA)in feces at farrowing and a higher concentration of branched fatty acids in feces on d 18 of ***,the abun-dance of Bacillus in feces was positively correlated with serum prostaglandin concentrations and fecal total SCFA of sows at farrowing,but was negatively correlated with the duration of ***,dietary IMO and Bacillus supplementation affected the concentration of serum reproductive hormones and the duration of farrowing and post-weaning estrus,and the gut microbiota is a key factor.