Biosecurity Practices to Limit Spread of Staphylococcus aureus on Ontario Sentinel Dairy Farms
Bibliographic record
Abstract
From May 1997 to December 1998, 40 dairy veterinarians from across the province, and 60 of their dairy producer clients, participated in the Sentinel Herd pilot project. Composite milk samples from all lactating cows in each herd were collected and cultured every 4 months. A milking and management questionnaire was administered to each participating producer at the time of the initial herd culture. Several questions pertaining to the herd's biosecurity practices were included. Based on the first 4 rounds of herd cultures, only 4 herds did not have any cows from which Staphylococcus aureus (HS) was isolated (negative herds). Three herds had positive cows on 1 herd culture and 6 herds had positive cows on 2 herds cultures. Fifteen herds were positive 3 times and 32 herds, all 4 times. As HS has been shown to be present in most of these herds, it is likely that many herds run a great risk of introducing this infection at some time. Therefore, it is of importance to examine the factors that appear to control it within a herd, once introduced.
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 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".