Suitability of Different Food Types for On-Feeding and Juvenile Production of European Grayling, Thymallus thymallus, under Intensive Farming Conditions
Bibliographic record
Abstract
In the present study on-feeding and juvenile production of European grayling, Thymallus thymallus, was tested with a commercially available fry food for salmonids (FSS) and a specific self-made fry food containing zooplankton components (DFZO) under intensive farming conditions. Live zooplankton food was used as control. Rearing of grayling was not possible with FSS as in > 70% of the fish malformations manifested circa 30 days after on-feeding. Malformed fish had sharply bent tails and gas accumulations in the coelomic cavity and intestine. These alterations were reversible and compensated when fish were fed on a live zooplankton diet instead of FSS for 2 weeks. When grayling were fed with DFZO during the first 14 days and with FSS thereafter, survival rates 49 d after first feeding were 85 ± 3%, increase in total length was from 15.7 ± 0.9 mm (day of first feeding) to 27.1 ± 1.2 mm (day 49) and in weight from 20 ± 2 mg to 110 ± 13 mg. The percentage of malformed fish was < 0.5%. These viability parameters did not significantly differ from fish fed with live zooplankton food.
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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 | 0.000 | 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) | 0.001 | 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".