Risk Factors Associated with Neospora caninum Herd Serological Status in Beef Cow-Calf Herds in Canada
Bibliographic record
Abstract
Neospora caninum (N. caninum), a protozoan parasite, is a major cause of reproductive failure in cows all over North America and in other regions of the world. Infected cows are at risk of early embryonic death, abortion, stillbirth, birth of a weak or abnormal calf and birth of a calf with no obvious defect, depending on previous exposure and the phase of gestation-early, mid or late. The dog has been implicated as a definitive host of N. caninum and contributing to fecal-oral (horizontal) transmission. It has been suggested that neonates become infected while in-utero (vertical transmission). The role of wild canids, coyotes and foxes in transmitting infection in beef cow-calf is still not clear. Although suggested, it is not known if extensive husbandry and management methods employed in beef cow-calf plays a role in N. caninum infection, transmission and disease occurrence in beef cow-calf herds. The objective of this study was to determine seroprevalence of N. caninum in beef cow-calf herds in Canada and to identify potential risk factors contributing to seroprevalence.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".