Publication details.


Author(s):D. Ivulic, R. Rossello-Mora, T. Viver, D. Montero, S. Vidal, F. Aspee, H. Hidalgo, R. Vidal
Title:Litter Management Strategies and Their Impact on the Environmental and Respiratory Microbiome Might Influence Health in Poultry
Issue No.:5
Abstract:© 2022 by the authors. Licensee MDPI, Basel, Switzerland.Aerial and respiratory tract-associated bacterial diversity has been scarcely studied in broiler production systems. This study examined the relationship between the environmental air and birds’ respiratory microbiome, considering a longitudinal sampling. Total viable bacteria and coliforms in the air were quantified, and the 16S rRNA gene was sequenced from tracheal and air samples obtained through a novelty protocol. Air results showed a decrease in coliforms over time. However, at week 3, we reported an increase in coliforms (from 143 to 474 CFUc/m3) associated with litter management. Additionally, 16S rRNA gene results indicated a distinctive air microbial community, associated primarily with Bacillota phylum particularly of the Bacilli class (>58%), under all conditions. Tracheal results indicated a predominance of Escherichia coli/Shigella at the beginning of the productive cycle, shifting toward the middle and end of the cycle to Gallibacterium. However, at week 3, the dominance of Escherichia coli/Shigella (>99.5%) associated with litter aeration by tumbling stood out. Tracheal and air samples displayed a statistically different community structure, but shared differentially abundant features through time: Enterococcus, Gallibacterium, and Romboutsia ilealis. These results indicate the impact of production management protocols on the birds’ respiratory system that should be considered a breakpoint in poultry farm health.

Related staff

  • Ramon Rosselló Móra
  • Bartomeu Viver Pizà
  • Related departments

  • Animal and Microbial Biodiversity
  • Related research groups

  • Environmental Microbiology