Comparison of the nasopharyngeal bacterial microbiota of beef calves raised without the use of antimicrobials between healthy calves and those diagnosed with bovine respiratory disease
Bibliographic record
Abstract
It has been shown that the composition of the nasopharyngeal bacterial microbiota plays a role in respiratory health. However, the role of this microbiota in the development of bovine respiratory disease (BRD) is still not well defined. What we know about the composition of the bovine nasopharyngeal bacterial microbiota mainly comes from beef calves that have received mass medication (metaphylaxis) with an antimicrobial on arrival at a feedlot. Unfortunately, antimicrobials do not just target pathogenic bacteria, and antimicrobial use can have an impact on the entire respiratory microbiota, including commensals. There are currently no data on the composition of the nasopharyngeal microbiota of healthy feedlot cattle and those diagnosed with BRD that are raised without antimicrobials (i.e. natural cattle), limiting our understanding of the disease. As the beef industry begins to move away from the use of antimicrobials, this information will become increasingly valuable. Therefore, the objective of this study was to characterize and compare the nasopharyngeal bacterial microbiota in feedlot cattle raised without antimicrobials that were healthy or diagnosed with BRD.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".