This study evaluated the rehydration approach of mature corn grains as an alternative for high-moisture corn grain silage production in distinct corn hybrids, storage period, cultivation locations and kernel maturity at plant harvest. High-moisture corn was used as a control. The dry matter content and pH of the silage were measured, and the bacterial community associated with corn grains pre- and post-ensiling was also assessed through 16S rRNA high-throughput sequencing. The decrease in pH value was directly linked to an ecological microbial succession of Enterobacteriales and Actinomycetales to Lactobacillales in the silage at 120 days after storage, either in rehydrated or high-moisture corn. These results were similar for both maize production locations and hybrids tested. Finally, the similarity between the ensiling processes including rehydrated corn and the high-moisture corn grain silages proves the reliability of the rehydration approach as an alternative for the maintenance of a successful bacterial community structure and composition capable of producing high-quality silages from dent and flint corn hybrids in tropical conditions.

中文翻译：

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玉米干燥后，补水可保持所需的细菌群落。

这项研究评估了成熟玉米籽粒的补水方法，以替代不同玉米杂交种，储藏期，栽培地点和收获时籽粒成熟度的高水分玉米青贮饲料。高水分玉米用作对照。测量了青贮饲料的干物质含量和pH值，还通过16S rRNA高通量测序评估了与玉米粒装盘前后的细菌群落。pH值的下降与肠杆菌和放线菌对乳杆菌的生态微生物演替直接相关在储存后120天的青贮饲料中，无论是补给水分还是高水分的玉米。对于玉米生产地点和所测试的杂种来说，这些结果都是相似的。最后，包括再水化玉米和高水分玉米粒青贮饲料在内的青贮过程之间的相似性证明，再水化方法的可靠性，可以作为维持成功的细菌群落结构和成分的替代方法，该细菌群落结构和成分能够从凹痕和碎屑中产生高质量的青贮饲料。热带条件下的石玉米杂交种。