Crecimiento, características de la canal y calidad de carne de toros jóvenes de tres biotipos sometidos a reimplante y suplementación en sabana tropical mejorada
Bibliographic record
Abstract
Bull calves representing three biotypes: Predominant Bos indicus (TROPBI; n = 24); tropically-adapted taurine x TROPBI crossbred (TROP-Taurus-Indicus, n = 32) and temperate B. taurus x TROPBI crossbred (TEMP-Taurus-Indicus, n = 33)] were selected and randomly assigned to pasture supplementation treatments [mineral (CONTROL-SUPPL) or strategic protein-energy supplementation (STRT-SUPPL)] and implant regimes [RIMPL: repeated (d-0, d-90) Zeranol-72mg implantation (ZER-ZER) or Trenbolone Acetate-140 mg/Estradiol-20mg implantation (d-0) plus Zeranol-72mg implantation (d-90) (ESTBA-ZER)] to be compared in growth performance, cutability, textural [shear force (WBSF)] and sensorial quality (descriptive sensory ratings). The variance analyses indicated that TEMP-Taurus-Indicus exceeded TROP-Taurus-Indicus and TROPBI in body weight, daily gain, carcass weight, and frequency of the top Venezuelan quality category for bull carcasses (P < 0.015). Significant interactions of second order for the external fat finish score and first-order for the length of the pelvic member were detected. The TROP- and TEMP-Taurus-Indicus bulls exhibited larger ribeye areas than the TROPBI (P < 0.001) and more than 60% reached the top (USDA 1) yield grade (P = 0.022). There was a significant second-order interaction for the WBSF. Under STRT-SUPPL and ZER-ZER implant regime the TEMP-Taurus-Indicus exhibited lower WBSF values (4.72 kg) than TROP-Taurus-Indicus (5.57 kg; P = 0,003) and TROPBI (6.29 kg; P < 0,001). Steaks from animals STRT-SUPPL and ESTBA-ZER-implanted TROPBI required lower (P = 0.020) WBSF than those from ZER-ZER-implanted TROPBI. The results suggest that under the conditions presented herein: (a) greater performance for growth traits occurs in the descendance of TROPBI cows bred to TEMP taurine sires, (b) heterosis does not manifest for carcass or meat sensory quality, and (c) the modest improvements observed in tenderness (lower shear force) with the protein-energy supplement in the TEMP-Taurus-Indicus group seemed insufficient to be detected by Venezuelan consumers.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".