Evaluating the feeding value of western Canadian expeller-pressed soybean meal fed to growing pigs
Bibliographic record
Abstract
The objectives of this study were to evaluate phosphorous (P) digestibility and energy contents of expeller-pressed soybean meal (SBE) derived from Manitoba grown soybeans as a potential source for swine. The study aimed to compare the Manitoba derived SBE with Ontario derived SBE, yielding the results that can be used to showcase the comparative soybean quality in swine nutrition, enhancing the reputation of western Canadian grown soybean in foreign markets and concurrently reducing the dependence on imports. Four SBEs were used in the experiment, with three derived from soybeans grown in Manitoba (MB1, MB2, and MB3) whereas the fourth was derived from soybeans grown in Ontario. Experiment 1 was conducted to determine the apparent total tract digestibility (ATTD) of calcium (Ca) and P and standardized total tract digestibility (STTD) of P in SBE and to examine the effects of microbial phytase supplementation on ATTD and STTD of P in SBE. The STTD values of P with and without phytase supplementation averaged 69.9% and 79.7%, respectively. The ATTD and STTD of P were not different among the SBE types. Phytase supplementation increases the P digestibility in SBE irrespective of source. Experiment 2 was conducted to determine the digestible energy (DE), metabolizable energy (ME) and net energy (NE) content in SBE derived from Manitoba and Ontario regions. Manitoba and Ontario derived SBEs were not different in terms of DE, ME and NE contents when fed to growing pigs. The average contents of DE, ME and NE in studied SBE was 4280, 4056, and 2986 kcal/kg DM, respectively. Manitoba derived and Ontario derived SBE were not different in terms of P digestibility and energy content. Thus, average values of STTD of P, and NE values can be efficiently utilized in swine diet formulations. In conclusion, western Canadian grown soybeans hold promise as a viable protein ingredient for swine nutrition, however, further studies are necessary to understand its full potential.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 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".