Comparison of tilmicosin to gamithromycin for on arrival treatment of bovine respiratory disease in feeder steers
Bibliographic record
Abstract
A trial was conducted in a commercial feedlot in western Canada using fall-placed feedlot calves at moderate risk of bovine respiratory disease (BRD) to compare the efficacy of gamithromycin to tilmicosin for metaphylactic treatment of BRD. First-pull treatment rates for BRD were significantly lower (P=0.01) in calves in the gamithromycin group than in the tilmicosin group. There were no other significant differences in health or performance between the two groups. The 6.6 percentage point difference in treatment rates for BRD equated to a net advantage of $0.03 CAN/head for those calves given gamithromycin as a metaphylactic drug on arrival compared to metaphylactic treatment with tilmicosin. Drug cost and disease risk should be carefully evaluated in each feedlot and group of incoming cattle to determine the most cost-effective metaphylaxis protocol.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".