Malic Acid Supplementation on Rumen Fermentation, Nutrient Digestibility, Performance and Carcass Traits in Lambs: A Meta-Analysis and Meta-Regression Considering Dietary Moderators.

Animals (Basel) · 2026 · PMC13113034 · PMID 42072029

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hedged sentences

0.0570

closest p · 1.1× alpha

0.0570

boldest claim

The sentences

showed a trendp = 0.057so close (0.05 < p ≤ 0.1)

The meta-analysis based on 18 comparisons showed a trend ( p = 0.057) toward increased final body weight (FBW) in lambs receiving malic acid supplementation.

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did not reach statistical significanceno p-value reported

Although the overall effect size was negative (ES = −0.531), indicating a tendency toward lower NH 3 -N concentrations, the effect did not reach statistical significance and was associated with substantial heterogeneity (I 2 = 69%).

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