Economic cost-benefit analysis of the use of bacitracin methylene disalicylate in broilers affected with necrotic enteritis
Bibliographic record
Abstract
The flock-level economic impact associated with necrotic enteritis (NE) in broiler production was estimated in flocks that were administered 55 ppm bacitracin compared to flocks that were not given prophylactic medication. Current production parameters and economic values available for the United States were used in a cost-benefit evaluation to determine the return on investment (ROI) in prophylactic use of BMD. Estimates were expressed in US dollars from the perspective of poultry producers. Costs to the producer, including feed and medication, were compared with benefits accrued from reduced mortality rates in treated flocks and improved weight gain. A sensitivity analysis evaluated the ROI from BMD use under varying mortality rates (one to 20%) and target weights (4.63 to 7.94 lb). The average flock-level ROI in BMD was $4.51, and sensitivity analyses demonstrated that the ROI ranged from $2.28 to 7.24 depending on NE morbidity rate and target weight. The average return in BMD per lb produced was c/1.5, and sensitivity analyses demonstrated that return ranged from c/0.8 to 2.1 depending on NE morbidity rate and target weight. These analyses demonstrated that a positive ROI can be realized in flocks at risk for NE through the prophylactic use of BMD in broiler production.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| 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".