Intestinal damage in weanling pigs following a nutritional insult is transient
Bibliographic record
Abstract
Forty pigs were used to evaluate the long‐term effect of nutritional insult on measures of intestinal development in weanling pigs. Pigs were weaned at 21±2 days of age and fed diets ad libitum containing either high (H) or low (L) quality protein sources for 6 wks. Growth performance was monitored weekly. Pigs were killed at wk 2 and 4. Sections of proximal jejunum and distal ileum were taken for histology and ileal digesta was sampled. Pigs on L had lower ( P = 0.002) daily gain in wks 1–3 but not different in wks 4–6 compared to H pigs. Similarly, feed efficiency in pigs on L was lower ( P < 0.05) during wks 2–3 but not different in wks 4–6. In the proximal jejunum, villus height was lower ( P = 0.03) at wk 2 in pigs on L (356 vs 427 μm) but not different at wk 4 (527 vs 492 μm). There was no difference in crypt depth but villus height:crypt depth ratio increased ( P = 0.04) from wk 2 to wk 4 (1.7 vs 2.2) in pigs on L and did not change in pigs on H (2.3 vs 2.5). Pigs on H tended to have a greater ( P < 0.17) proportion of proliferating cells in the jejunum at wk 2 and 4. In wk 2, digesta amine concentration was higher ( P = 0.06) in pigs on L. Diet quality did not impact gut morphology or cell proliferation at the distal ileum. Low quality protein sources reduced overall growth performance in weanling pigs but the negative effect of protein quality on gut morphology was transient. Recovery in feed utilization in pigs on L was likely due to rapid recovery of intestinal function.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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".