OPTIMIZATION OF INDUCED OVULATION AND SPAWNING OF AFRICAN CLARIID CATFISH, Heterobranchus bidorsalis (Geoffroy-Saint-Hilaire, 1809) USING SYNTHETIC HORMONE
Bibliographic record
Abstract
In this study, induced spawning of Heterobranchus bidorsalis was optimized for artificial propagation. A single dose (ml) of synthetic hormone, Ovaprim" (Syndel, Canada), per kg body weight (bw) at 0.5, 0.75, 1 and 1.25 were administered on the broodstock. Ovulation and spermiation were achieved within the latency period of 14±1 h at 27±0.5 °C. Mean spawned eggs for doses of 1 ml/kg (56.77±8.92g) and 1.25 ml/kg (59.93±3.26g) gave significant production compared to 0.5 ml/kg (5.07±2.29g) and 0.75ml/kg (9.13±1.10g) (p<0.05). Percentages of fertility (72.33+2.52, 79.33±4.04, 84±4.58, 8214.36); hatchability (43.47±4.77, 61.73+10.02, 70.4+5.51, 68.57+12.78) and survival (47.37+3.16, 54.07±7.74, 64.67±4.63, 62.4±2.82) for the test doses of 0.5, 0.75, 1, 1.25 m/kg bw were recorded respectively at 28.5 +0.5 "C. The higher doses of 1 and 1.25 ml/kg bw showed significant difference compared to the lowest dose of 0.5ml/kg (p<0.05) while 0.75ml/kg was not significantly different to all other doses (p>0.05). Hatching occurred at 21 h in all the treatments. This study revealed reproductive dysfunction in H. bidorsalis and recommend a dose of Iml/kg bw for optimal induction using synthetic hormone Ovaprim.
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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".