Isospora suis infection and its association with postweaning performance on three southwestern Ontario swine farms
Bibliographic record
Abstract
Objective: To determine the association between Isospora suis infection and weight gain in pigs up to 8 weeks of age. Materials and methods: A prospective cohort study was conducted on a convenience sample of three swine farms in Ontario. Fecal samples were collected from randomly selected piglets from each of 72 litters and examined for oocysts using centrifugal floatation. Piglet weight was recorded six times, during the first, second, third, fourth, fifth, and eighth weeks of life. If one or more suckling piglets from a litter were shedding I suis oocysts, then the litter was classified as infected. A linear mixed model was used to examine the effect of infection on weight gain. Results: Isospora suis infection during suckling was associated with lower weights of pigs at the end of the nursery stage (average 62 days of age). Pigs from infected litters were 1.4 kg lighter than pigs from non-infected litters (95% CI, 1.1-1.8 kg; P < .001). Implications: Infection with I suis during the suckling period can have an impact on postweaning performance. Thus, calculations of the economic impact of coccidiosis need to include the effect of slower growth rates in the first few weeks after weaning, as well as a reduction in suckling pig performance.
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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 | 0.000 |
| 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".