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Record W4402541239 · doi:10.1093/jas/skae234.839

PSVII-26 The effect of consuming red clover pasture and beneficial fatty acid supplements on ram lamb seminiferous tubule microscopic features

2024· article· en· W4402541239 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJournal of Animal Science · 2024
Typearticle
Languageen
FieldNursing
TopicNuts composition and effects
Canadian institutionsAgriculture and Agri-Food CanadaDalhousie University
Fundersnot available
KeywordsPastureSeminiferous tubuleRed CloverBiologyChemistryFood scienceAnimal scienceAgronomyEndocrinologySpermatogenesis

Abstract

fetched live from OpenAlex

Abstract Fatty acids and phytoestrogens have been linked to short- and long-term alterations of reproductive performance in sheep. Red clover (RC) contains phytoestrogens, which have been linked to reduced reproductive performance in sheep. However, rams fed RC have increased omega-3 polyunsaturated fatty acids (n-3 PUFAs) and conjugated linoleic acid (CLA). These beneficial fatty acids may improve reproductive performance in rams. Fish oils (FO) contain significant amounts of n-3 PUFA and these improve reproductive performance. This study aimed to determine the effects of RC pasture and beneficial fatty acid supplementation on ram lamb seminiferous tubule histology. Crossbred ram lambs (n =32; 2 to 3 mo of age) were randomly divided into four groups (n = 8 per group) and balanced by body weight (BW) and dam parity. Two groups grazed tall fescue (TF)/RC, and two grazed TF pasture for 10 wk. These groups were then further randomly subdivided to receive a fat supplement [soybean oil (SBO; n = 8), SBO + CLA (n = 8), or FO (n = 8)] or no fat supplementation (CON; n = 8) during a 5-wk finishing diet. Then rams were slaughtered, and their testes were collected, fixed, and processed for histology. Testes cross sections were viewed under light microscopy and photos were taken for image analysis. Seminiferous tubule diameter, luminal diameter, cell count, and the average cell nuclear area: tubule area were determined using Image-Pro 10 software (Media Cybernetics). No significant differences were noted in tubular diameter or luminal diameter between any treatment groups. Those on TF had significantly greater cell counts (371.3 ± 39.6 vs. 305.9 ± 44.2; P < 0.05) than rams on TF/RC pasture. Soybean oil produced a significantly lower ratio than SBO + CLA (0.000324 ± 0.000190 vs. 0.000408 ± 0.000300, P < 0.05) but a greater cell count (498.2 ± 36.2) than CON, SBO + CLA, or FO (289.7 ± 52.9 vs. 282.2 ± 50.3 vs. 284.3 ± 50.9; P < 0.001). No statistical difference was noted in ratios between the two pastures. Rams on TF/RC, with no supplementation had the least cell counts (227.2 ± 58.2) of all treatment groups, with significantly fewer counts than TF/RC + SBO rams (412.4 ± 62.0 P < 0.05) and TF + SBO rams (583.9 ± 37.3; P < 0.001); the latter had the greatest cell count of all treatment groups. Results suggest that RC and oil supplementation impact cell count, and oil supplementation impacts ratios but neither factor had an impact on tubule or luminal diameter.

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation 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: Empirical · Consensus signal: Empirical
Teacher disagreement score0.119
Threshold uncertainty score0.302

Codex and Gemma teacher scores by category

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

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 head0.007
GPT teacher head0.294
Teacher spread0.286 · 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