First report in Cuba of the presence of the louse Goniodes colchici (Denny, 1842) (Phthiraptera: Goniodidae) on Gallus gallus domesticus (Galliforme, Phasianidae).
Bibliographic record
Abstract
Laying hens are affected by numerous species of lice. High infestations cause intense itching, irritation and destruction of feathers. In addition to interfering with the nutrition and rest of the birds, with the consequent impact on meat and egg production. Although several studies have been carried out on this topic in Cuba, findings of a species of louse were recently observed whose taxonomic characteristics differ from the species described in the country. The objective of the study is to report this new species of malophagous insect in Gallus gallus domesticus. Laying hens of the White Leghorn breed, 445 days old, from the Mayabeque province, Cuba, were sampled. From each bird, 3 to 5 feathers were extracted from seven regions of the body: head, back, wings, cloaca area, anterior thigh, tail and pectoral area. The collected specimens were mounted in Canada Balsam, on slides and coverslips for taxonomic identification under an optical microscope. The slides were placed in an incubator at 28ºC for seven days for clarification and subsequent identification. The level of infestation or intensity of invasion was determined taking into account the number of feather insects found. The taxonomic characteristics found in these insects coincide with those described for the species Goniodes colchici (Denny, 1842). The presence of the louse G. colchici (Phthiraptera: Goniodidae) on Gallus gallus domesticus is reported for the first time in Cuba.
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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 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".