Fine-tuning of post-weaning pig microbiome structure and functionality by in-feed zinc oxide and antibiotics use.

"Conflict of interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision."

"The author(s) declare financial support was received for the research, authorship, and/or publication of this article. JO was supported by the Walsh Fellowship Reference Number: 2018026. The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication. DE was supported by the Walsh Fellowship Reference Number: 2018027. HA is financially supported by the “Beatriz Galindo” Programme from the Spanish Government (Ministerio de Educación y Formación Profesional) BEAGAL-18-106."