180 Effect of High Dietary Canola Meal Inclusion in Gestation and Lactation Sow Diets with or without Enzyme Supplementation on Reproductive Performance, Milk Composition and Nutrient Digestibility.
Bibliographic record
Abstract
The aim was to determine the effects of high canola meal (CM) inclusion in gestation and lactation diets on reproductive performance, milk composition and nutrient digestibility of sows. Forty-five sows with an average parity of 3.1 (SD = 0.75) were randomly assigned to 1 of 3 dietary treatments (n = 15) consisting of a corn-soybean meal control diet, control diet containing 30% CM with or without a multi-enzyme complex (MC). Both gestation and lactation diets were formulated to be similar in standardized ileal digestible amino acid content and NE value and to meet or exceed NRC (2012) nutrient recommendations for sows. Sows were individually housed and were offered the experimental diets from d 60 of gestation until weaning on d 21. Sows were weighed and backfat thickness measured on d 60 and 111 of gestation, and on d 0 and 21 post-farrowing. Litters were weighed on d 0 and 21. Weaning to estrus interval in sows was recorded. Blood and milk samples were collected 2 h post-feeding from sows on d 0 and 21 to determine the plasma urea nitrogen (PUN) content and milk composition. On d 10, 11 and 12 post-farrowing, fecal samples were collected from sows to determine energy and nutrient digestibility. There were no dietary effects on lactation feed intake, sow backfat change, weaning to estrus interval and milk composition (P > 0.10). However, during lactation sows fed CM-containing diets with MC had lower (3.3 vs. 6.0 kg; P < 0.05) BW loss than those fed the control diet. There were no dietary effects on the number of piglets farrowed, born alive, weaned and piglet ADG (P > 0.10). Sows fed diets containing CM with or without MC had lower (4.4, 4.9 vs. 6.4 mmol/L; P < 0.05) PUN values compared with those fed the control diet on d 21 post-farrowing. Apparent total tract digestibility (ATTD) of energy and nutrients showed no dietary effects except for ATTD of P, wherein sows fed CM-containing diets with MC showed higher (41.7 vs. 32.6%; P < 0.05) P digestibility compared to those fed CM-containing diets without MC. In conclusion, the inclusion of up to 30% CM in gestation and lactation diet can support satisfactory sow and piglet performance without affecting energy and nutrient digestibility. Moreover, enzyme supplementation had no effect on sow or piglet performance except for sow BW loss and P digestibility.
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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 | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".