Ruminal pH, short-chain fatty acid concentrations, and serum acute phase protein concentrations during finishing for steers with and without rumen and liver pathology
Bibliographic record
Abstract
This study was carried out to determine whether ruminal fermentation and serum acute phase protein concentrations differed between steers with and without pathology at slaughter. Ruminally cannulated steers (n = 28) were housed with noncannulated steers (n = 250) and randomly assigned to one of eight pens. Steers were previously adapted to a diet containing 5% barley silage and 95% concentrate. Ruminal pH was measured continuously and ruminal fluid and blood samples were collected weekly. Steers were slaughtered and those with a liver score (A or A+) or a rumen score of 2 or 3 (ulceration or scarring) were classified as pathology (PATH) and compared with those with no pathology (NOPATH). Steers with PATH spent 182 min d−1 more with pH < 5.8 (P = 0.05) and 64 min d−1 more time with pH < 5.2 (P = 0.03) than NOPATH. The concentration of serum amyloid A was greater for steers with PATH than NOPATH (P = 0.02) and haptaglobin tended (P = 0.08) to be greater. Overall, results of the current study suggest that the duration of time that ruminal pH is <5.2 and a serum acute phase protein response are greater for steers with a case definition including ruminal and liver lesions.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 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".