Role of triptorelin and single fixed-time artificial insemination on productive and reproductive performance of hyperprolific sows
Bibliographic record
Abstract
Single fixed-time artificial insemination (SFTAI) provides a streamlined approach to improving reproductive management. We evaluated the impact of incorporating triptorelin acetate (GnRH agonist) into a SFTAI protocol on a commercial farm. Hyperprolific sows not in estrus by day 4 post-weaning were randomly assigned to two groups. Group-1 (G1; n = 243) received no triptorelin treatment and daily post-cervical artificial inseminations (PCAI) based on estrus detection (2.59±0.034 inseminations/sow). Group-2 (G2; n = 249) received a single intravaginal dose of triptorelin (0.2 mg) at 96 ± 2 hours post-weaning, then one PCAI 22 ± 2 hours later. No significant differences ( P >0.05) between groups in conception rate (G1: 98.8%; G2: 97.6%), farrowing rate (G1:95.1%; G2: 94.4%) or litter characteristics (total born, live-, stillborn and mummified piglets). Both groups showed similar delivery batch durations ( P =0.414). Distribution of deliveries during the delivery period was similar ( P =0.455). Induction of labor was need more frequently in G1 ( P <0.001). G2 had a higher proportion of sows with shorter gestations (112-115 days: 166/235, 70.6%) compared to G1 (112-115 days: 82/231; 35.5%, P<0.001). A significantly higher proportion of G2 piglets received longer lactation (27 - 33 days) compared to G1 (2210/3023=73.1% vs 2774/4395=63.1%; P = 0.032). G1 had a higher proportion of low-weight piglets (≤4.0 kg; 716/43950=16.3% vs.435/3023= 14.4%; while G2 had more heavy piglets (≥6.5kg; 1228/3023=40.5% vs.1675/4395= 38.1%) ( P =0.027). Observed differences in lactation length could be responsible for these weaning weight differences, rather than triptorelin treatment itself. This protocol did not worsen productive and reproductive performances.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| 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".