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 distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 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 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".