Vaginal Seeding: Is There Any Positive Effect in Canine C-Sections?

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Abstract
This study aimed to scrutinize variations in the intestinal microbiota of neonatal dogs born through natural birth versus elective cesarean section, focusing on evaluating the influence of vaginal seeding on the microbiota of cesarean-born neonates. Samples were collected from cesarean-sectioned females before anesthesia and from naturally birthing females during prodrome signs, along with neonates at eight time points from birth to 15 days of age. In the cesarean section group, seeding was performed in half of the neonates (cesarean section seeding group; seeding consisted of gently rubbing the gauze, obtained from the mother’s vagina, onto the mouths, faces, and bodies of the newborns), while the other half underwent microbiological sample collection without seeding (cesarean section group). Another group (normal birth group) consisted of naturally born neonates. Microbiota analysis included counting for enterobacteria, Staphylococcus spp., and Streptococcus spp. The results suggested that vertical transmission played a crucial role, but the method of birth did not emerge as the primary determinant of observed differences. Under study conditions, vaginal seeding failed to effectively modulate the microbiota of neonates born through elective cesarean section. Further investigations into the gut–brain axis are suggested for understanding factors influencing the initial development of the canine intestinal microbiota in neonates born through different delivery routes.
Funding Information
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (88887.550476/2020-00)

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