Clinical and Economic Effects of an Internal Teat Sealant at Dry-off on the Incidence of Clinical Mastitis in Early Lactation
Bibliographic record
Abstract
Twelve commercial dairies in Quebec, Canada, evaluated the clinical and economic effects of using an internal teat sealant (ITS; Orbeseal®) combined with standard intramammary antibiotic dry-cow treatment on the incidence of clinical mastitis in early lactation. A total of 1,334 Holstein cows were randomly assigned to treatment of all four quarters with an antibiotic dry cow treatment (ADCT) alone or with antibiotic treatment and an internal teat sealant (ADCT+ITS) at dry-off. The incidence rate of clinical mastitis per 100 cow-days at risk during the first 105 days-in-milk was 22% lower (relative risk= 0. 78; 95% confidence interval 0.61 to 1.01) for theADCT+ITS group than for theADCT group. The daily probability of experiencing clinical mastitis, starting at calving, was reduced by 24% for the ADCT+ITS group. The net benefit, based on lost milk production associated with clinical mastitis, was approximately $20 Canadian (CDN) per cow for theADCT+ITS group due to the lower incidence of clinical mastitis, particularly soon after calving.
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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 | 0.003 |
| 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) | 0.001 | 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".