Study on Characterization of Maternal Transmission of Microorganisms in Hindgut of Newborn Yili Horse Foals
The aim of this experiment was to investigate the maternal transmission characteristics of hindgut mi-croorganisms in newborn Yili horse foals.Microbiota characterizations of placenta,umbilical cord,colostrum,feces,and meconium of foals from 11 pairs of Yili mares were analyzed by 16S rRNA gene amplicon sequen-cing and SourceTracker analysis methods to determine the extent to which microorganisms from different parts of the mare contributed to microbiota colonization of the foal hindgut.The results showed that the microbiota of placental and umbilical cord were similar in structure;mare's feces and foal's meconium had unique microbi-ota.Microorganisms from the mare's placenta,umbilical cord,colostrum were sources of microbiota in the foal's meconium,in descending order of contribution:colostrum(5.5％),umbilical cord(0.8％),and pla-centa(0.7％).Besides,there were many other microorganisms of unknown origin and high relative contribu-tion(93.0％)in foal's meconium.This experiment results demonstrate that microorganisms from mare's pla-centa,umbilical cord and colostrum can colonize the foal gut by means of maternal transmission,with colos-trum microorganisms contributing the most to the colonization of meconium microorganisms.[Chinese Journal of Animal Nutrition,2024,36(9):5860-5871]
Yili horse marefoalmeconiummicroorganismsmaternal transmission
万方数据
维普
