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August 7, 2026BMC MicrobiologyOpen Access

Differential modulation of rumen function and bacterial communities in lambs by silage type and nitrogen source

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Authors

BWBo WangMSMingxing ShaoZZZ Zhang

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Overview

Randomized trial evaluates the impact of silage type and nitrogen source on rumen function in lambs, suggesting dietary components shape microbial structure and fermentation outcomes.

Key Points

  • The study investigates how different silage types and nitrogen sources affect rumen function and microbial communities in lambs.
  • Forty-eight male Hu lambs (24.11 ± 2.77 kg) were divided into four groups based on silage type (corn vs. sweet sorghum) and nitrogen source (soybean meal vs. slow-release urea) in a 2x2 factorial design.
  • Rumen fermentation, enzyme activity, and bacterial community analysis were performed on liquid and solid digesta fractions after a treatment period.
  • Microbial diversity and enzyme activity changes were assessed using 16S rRNA sequencing and fermentation profile measurements.
  • Sweet sorghum silage enhanced fibrolytic enzyme activities compared to corn silage (P < 0.05).
  • Partial substitution of soybean meal with slow-release urea improved fibrolytic activities and tended to increase total VFAs (0.05 < P < 0.10).
  • Distinct patterns in microbial communities were observed, with sweet sorghum silage favoring carbohydrate metabolism and corn silage enriching anabolic functions (P < 0.05).

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a758b93847ab6d26c01ef1ehttps://doi.org/10.1186/s12866-026-05468-9
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Influence of Sweet Sorghum Silage and Slow-Release Urea on Lamb Meat Quality and Fatty Acid Profiles2026
  2. 2Partial replacement of corn silage with sorghum-sudangrass silage improves growth performance and rumen function in Hu sheep via microbial and metabolic modulation2025 · 3 citations
  3. 3Effects of Slow-release Urea vs conventional urea and Molasses on Digestibility, Rumen Fermentation, Nitrogen Balance and Microbial Protein yield in Sheep2025
  4. 4Effects of Sweet and Forge Sorghum Silages Compared to Maize Silage without Additional Grain Supplement on Lactation Performance and Digestibility of Lactating Dairy Cows2024 · 14 citations
  5. 5Effect of mixed microbial silage of mulberry and navel orange residue on growth performance, blood metabolism, and rumen microbiome changes in beef cattle2026