Efecto del derivado de la lactosa sobre la población microbiana de muestras fecales de cerdos posdestete
Bibliographic record
Abstract
COMPENDIO Se estudió el efecto prebiótico del derivado de la lactosa (DL) en la población microbiana presente en las muestras de heces (inóculo fecal) de los cerdos posdestete. Se utilizó la técnica de producción de gas in vitro en 2 sustratos: el control pulpa de remolacha (PR) y DL. Se desarrollaron dos etapas. En la primera se determinó la producción del gas y las proporciones de ácidos grasos volátiles (AGV), evaluando la actividad microbiana en los niveles (0, 0.2, 2, 20 y 100%) de DL reemplazando a la PR, durante la fermentación de 144h. El tiempo medio de la producción del gas potencial se alcanzó a las 12h de la fermentación. Este tiempo se utilizó para la segunda etapa con tres niveles de DL (0, 20 y 100%). Se determinó el efecto del DL sobre la composición de la población microbiana (E. coli, lactobacillus y anaerobios facultativos totales), concentración de AGV y sobre el pH, como resultado de la fermentación bacteriana . Se incrementó la concentración del butirato (P and lt; 0.001) y la acidificación (P and lt; 0.001) del medio. El DL modificó la composición microbiana, que se reflejó en la disminución (P and lt; 0.001) del número de colonias microbianas de E. coli. En conclusión el DL en niveles altos presentó efectos prebióticos. Palabras claves: Lactosa, prebiótico, fermentación in vitro, cerdo, butirato, Escherichia coli ABSTRACT Effect of Lactose Derivative (LD) on the present microbial populationʼs in the sample faeces of weaned piglets The prebiotic effect of Lactose Derivative (LD) on the present microbial populationʼs in the sample faeces (faecal inocula) of weaned piglets was studied . The in vitro gas-production technique was used. Using 2 substrates: sugarbeet pulp (SBP) as control and LD as evaluation. Two stages were developed. In the first it the gas production and the Volatile Fatty Acids (VFA) proportions, during 144h fermentation, to evaluate the effect of the microbial activity with different DL levels (0, 0.2, 2, 20 y 100%), as replacement to SBP was determined. The half time gas production potential, was reached at the 12h of fermentation. This time was used for the second stage and the DL levels (0, 20 and 100%). Microbial populationʼs composition (E. coli, Lactobacillus and total facultative Anaerobes), VFA concentration and pH was determined. Effects of the DL were presented on the products of the bacterial fermentation in faecal inocula. An increment in the butyrate concentration (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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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".