Temporary lysine restriction in newly weaned pigs does not affect carcass and loin quality at slaughter
Bibliographic record
Abstract
Two hundred and forty weaned pigs [initial body weight (BW) 7.2 ± 0.07 kg] were allocated to three diets (eight pens per treatment, 10 pigs per pen) to determine the effects of a temporary lysine (Lys) restriction on subsequent growth, body composition, as well as carcass and loin quality at slaughter. For a 3 wk restriction period, pigs were fed diets that were 110% (control), 20% (Lys20), or 40% (Lys40) below estimated Lys requirements. Thereafter, all pigs were fed a common grower diet containing 120% of the estimated Lys requirement for 6 wk (recovery period) and commercial diets until slaughter at ∼125 kg BW. During the restriction period, average daily gain, gain-to-feed ratio, and whole body protein deposition decreased (linear; P < 0.01), while whole body lipid deposition increased (linear; P < 0.001) with decreased dietary Lys concentrations. At the end of the recovery period, there were no differences in BW, although whole body protein concentration tended to decrease and lipid concentration tended to increase (linear; P = 0.07 and 0.06, respectively) with decreased dietary Lys concentrations. At ∼125 kg, there were no differences in BW, chemical composition, or carcass and loin quality. Compensatory growth was achieved by ∼125 kg BW after a 3 wk Lys restriction for newly weaned pigs without negatively impacting carcass and loin quality.
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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 | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".