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- Title
Gut microbiota dynamics interacting with gastrointestinal evacuation of Apostichopus japonicus: novel insights into promising strategies for environmental improvement.
- Authors
Song, Chenyu; Zhou, Yijing; Dong, Ruiguang; Li, Xian; Dong, Dengpan; Song, Xiefa
- Abstract
As an important input of environmental micropollutants into aquaculture environment, feed is now considered to be a critical factor in shaping gastrointestinal evacuation characteristics of animals. We analyzed the gastrointestinal evacuation characteristics and gut bacteria of Apostichopus japonicus within 30 h after feeding in recirculating aquaculture system (RAS) and explored the evacuation mechanism interacting by bacteria. The Gauss model was the most precise gastrointestinal evacuation curve, and 80% of gastrointestinal evacuation time was 27.81 h after feeding. Linear discriminant analysis effect size analysis revealed that gut microbial abundance associated significantly with time (P < 0.05), and 42 biomarkers that could predict gastrointestinal evacuation were totally detected, such as Lutibacter and Vibrio. Biomarkers at 25 h after feeding were related to harmful bacteria. A dynamic response between gastrointestinal content ratio and gut microbial abundance was detected. Taken together, we could discharge sewage about 25 h after feeding and carry out the next round of feeding activities.
- Subjects
GUT microbiome; FISHER discriminant analysis; GASTROINTESTINAL contents; MICROPOLLUTANTS; ANIMAL rescue; VIBRIO alginolyticus
- Publication
Environmental Science & Pollution Research, 2024, Vol 31, Issue 6, p9831
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-023-31559-5