Digestible Lysine Requirement of Liuzhou Mahua Broilers at Different Growth Stages
Bibliographic record
Abstract
Experiments were conducted to determine the digestible lysine (DLys) requirement of Liuzhou Mahua broilersfrom 1 to 21 d and from 22 to 42 d of age. Monofactorial design was adopted in this study. 1200 one-day-oldhealthy broiler chicks were divided randomly and evenly into five treatments, and were all fed with isoenergeticdiet (with ME of 3.0 Mcal/kg) but with graded levels of DLys: 1.22%, 1.12%, 1.02%, 0.91% and 0.81% duringthe period of 1 to 21 days; 1.13%, 1.02%, 0.92%, 0.82% and 0.71% during the period of 22 to 42 days. Theresults showed that the DLys level in diet had a quadratic relationship both with the average daily gain (ADG)and feed:gain ratio (F/G). For Liuzhou Mahua broilers from 1 to 21 d of age, ADG was the highest at the DLyslevel of 1.12%, which was not significantly different from those at the levels of 1.22% and 1.02% (P>0.05), andF/G was the lowest at the DLys level of 1.22%. For Liuzhou Mahua broilers from 22 to 42 d of age, at the DLyslevel of 1.02%, ADG was the highest, and F/G was the lowest, but not significantly different from those at thelevels of 1.13% and 0.92% (P>0.05). According to regression analysis results, for Liuzhou Mahua broilers from1 to 21 d of age, the optimum DLys requirement was 1.07% with ADG as the indicator, and was 1.13% with F/Gas the indicator. For Liuzhou Mahua broilers from 22 to 42 d of age, with ADG and F/G as the indicator, DLysrequirement were 0.89% and 0.84%, respectively. Liuzhou Mahua broilers were not as sensitive to DLysconcentration variation as fast-growing broilers from abroad.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.001 | 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".