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Record W2962470048

High inclusion levels of canola meal in broiler chicken nutrition

2018· dissertation· en· W2962470048 on OpenAlexaboutno aff
Samuel Ariyibi

Bibliographic record

VenueMspace (University of Manitoba) · 2018
Typedissertation
Languageen
FieldAgricultural and Biological Sciences
TopicAnimal Nutrition and Physiology
Canadian institutionsnot available
Fundersnot available
KeywordsCanolaBroilerMealFood scienceInclusion (mineral)Animal scienceBiologyBiotechnologyChemistry
DOInot available

Abstract

fetched live from OpenAlex

Canola meal (CM) is a less expensive protein ingredient than soybean meal (SBM) for livestock feed formulation. Canola processing has a major impact on the nutritional quality of the meal, limitations in the dietary inclusions are associated with reduced meal quality because of overheating during processing. Crude protein (CP) and amino acid (AA) digestibility are affected by differences in processing methods and conditions causing a variation in the chemical and nutritive value of the meal. As a result, protein quality of CM can be verified using standardized ileal digestibility (SID) of AA in young broiler chickens to ascertain values that are reliable for efficient feed formulation when considering high inclusion levels of CM in poultry diet. Two separate experiments were conducted to measure SID of AA of CM sourced from 14 crushing plants across Canada, as well as to determine the effect of varying inclusion levels of CM on growth performance and nutrient digestibility of young broiler chickens. There were significant variations in SID of Lys (86.3 vs. 74.2%), Trp (94.5 vs. 76.7%) and Thr (87.3 vs.71.6%) of CM for broiler chickens. Whereas, Met (91.8 vs. 87.4%) and Cys (81.8 vs. 73.7%) were not significantly affected but Arg, which is known as a conditionally essential AA, varied significantly (92.0 vs. 83.8%). Lysine (1.97 vs. 1.53%), Thr (1.64 vs. 1.24%) and Met (0.68 vs. 0.46%) as well as other AA varied significantly in their standardized ileal digestible contents, while a regression analysis showed a significant relationship among AA suspected to be heat sensitive. In the growth performance experiment, overall result revealed that neutral detergent fiber (NDF) content of diet differed substantially with increased levels of CM but bird performance was not significantly affected. Energy utilization varied with age of birds while NDF digestibility was not affected by incremental levels of CM inclusion.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.008
Threshold uncertainty score0.016

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.019
GPT teacher head0.206
Teacher spread0.187 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreOther

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".

Quick stats

Citations0
Published2018
Admission routes1
Has abstractyes

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