The Microbiological Condition of Canadian Beef Steaks Offered for Retail Sale in Canada
Bibliographic record
Abstract
<p>Steaks of 4 types collected from 113 retails stores in 4 Canadian cities were frozen for storage. Swab samples collected from approximately 100 cm<sup>2</sup> of each of 598 thawed steaks were processed for enumeration of bacteria. The fraction of steaks from which total aerobic counts (AER), psychrotrophs (PSY), lactic acid bacteria (LAB), pseudomonads(PSE) and <em>Brochothrix thermosphacta</em> (BRO) were not recovered at <span style="text-decoration: underline;">&gt;</span> 2 log cfu/100 cm<sup>2 </sup>were 3, 12, 8, 25 and 51%, respectively. The fractions of steaks from which coliforms (COL) and <em>Escherichia coli</em> (ECO) were not recovered at <span style="text-decoration: underline;">&gt;</span> 0 log cfu/ 100 cm<sup>2 </sup>were 56 and 92%, respectively. The log number per 100 cm<sup>2</sup> recovered from <span style="text-decoration: underline;">&gt;</span> 90% of steaks were &lt; 6 for AER, PSY and LAB, &lt; 5 for PSE, &lt;4 for BRO, and &lt; 2 for COL. The microbiological conditions of groups of steaks of different types, from different cities or from different groups of stores were not substantially different.</p>
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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 | 0.002 | 0.001 |
| 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) | 0.000 | 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".