ArticleApplied microbiology and biotechnology2021
Ensiling sorghum with unsalable pumpkin improves feed digestibility with minimal influence on the rumen microbial population using the rumen simulation technique.
Article in Applied microbiology and biotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Unsalable Vegetables Ensiled With Sorghum Promote Heterofermentative Lactic Acid Bacteria and ImproveFrontiers in microbiology · 2022Article
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5 authors.
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Abstract
This study aimed to determine the influence of sorghum ensiled with unsalable pumpkin at 20 or 40% dry matter (DM) basis on rumen fermentation characteristics and rumen microbial communities using the rumen simulation technique (RUSITEC). The experiment used a completely randomised design including silages comprising (1) 100% sorghum; (2) 80% sorghum + 20% DM pumpkin; or (3) 60% sorghum + 40% DM pumpkin. Each RUSITEC run (n = 2) was 15 d long, including 6 d of adaptation and 9 d of sampling. Dry matter digestibility (DMD) was measured on d 8 and 10-13. Gas production was measured daily, whereas methane and volatile fatty acids (VFA) production were measured from d 7-15. Solid-associated microbes (SAM) were collected on d 5, 10 and 15, whereas liquid-associated microbes (LAM) were collected after 15-d incubation. The V4 region of the 16S rRNA gene and the ITS1 region were sequenced to identify archaeal, bacterial and fungal communities. Ensiling 40% DM pumpkin with sorghum increased DMD and decreased the ratio of acetate to propionate (P ≤ 0.01). Both bacterial SAM and LAM communities were dominated by Megasphaera, and had the highest relative abundance (P = 0.03) with 40% DM pumpkin after 5 d incubation in the SAM community, while species of the Aspergillus genus dominated fungal SAM and LAM communities with 20 or 40% DM unsalable pumpkin. Therefore, ensiling up to 40% DM unsalable pumpkin with sorghum produces a high-quality ruminant feed with minimal influence on the rumen microbial population. KEY POINTS: • Including 40% DM unsalable pumpkin decreased acetate:propionate • Ensiling unsalable pumpkin with sorghum increases digestibility in a RUSITEC • Rumen microbial communities were slightly influenced by unsalable pumpkin inclusion.
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