PREVALENCE OF BLAD AND CVM IN HOLSTEIN DAIRY CATTLE INTRODUCED TO MOROCCO
Bibliographic record
Abstract
The aim of this work was the estimation of BLAD and CVM prevalence in Holstein heifers and bulls that produced the semen introduced to Morocco.The study was carried out on 1874 heifers imported from France, Germany and Netherlands between 2005 and 2006 and 221 bulls that produced the semen imported from Canada, USA and France between 1999 and 2007.Based on the genotypes of sires and maternal grandsires mentioned on heifers' pedigrees, 2.1% and 17.5% of heifers introduced to Morocco were potential BLAD and CVM carriers, respectively.No bull that produced the semen was BLAD-carrier, whereas 0.5% bulls were CVM carriers.The frequency of at risk matings, i.e. those between potential carrier heifers and known carrier bulls, was 0 for BLAD and 0.7% for CVM.The frequency of mating between non-carrier heifers and confirmed carrier bulls was 0.2% and 16.8% for BLAD and CVM, respectively.The BLAD and CVM allele frequencies in heifers varied from 0.01 to 0.12 and from 0.03 to 0.14, respectively.It was concluded that a surveillance programme should be implemented in Morocco in order to avoid the introduction and the dissemination of farm animal hereditary defects.
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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 | 0.001 |
| 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".