Influence of Cuticular Waxes from Triticale on Rumen Fermentation: A Metabolomic and Microbiome Profiling Study
文献类型： 外文期刊
作者： Huang, Jiahao 1 ; Xu, Jiawei 1 ; Wu, Ruixin 4 ; Wang, Jinjing 1 ; Yang, Jianfeng 1 ; Li, Yuan 4 ; Wang, Bo 1 ; Xiong, Wangdan 1 ; Guo, Yanjun 1 ;
作者机构： 1.Qingdao Agr Univ, Qingdao Key Lab Specialty Plant Germplasm Innovat, Qingdao 266109, Peoples R China
2.Qingdao Agr Univ, Coll Grassland Sci, Key Lab Natl Forestry & Grassland Adm Grassland Re, Qingdao 266109, Peoples R China
3.Qingdao Agr Univ, Coll Grassland Sci, Qingdao 266109, Peoples R China
4.Hebei Acad Agr & Forestry Sci, Dry Land Farming Inst, Hengshui 053000, Peoples R China
5.Acad Dongying Efficient Agr Technol & Ind Saline &, Dongying 257091, Peoples R China
关键词： cuticular wax; forage plants; rumen fermentation; metabolites; microbial communities
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）
ISSN： 0021-8561
年卷期： 2024 年 72 卷 3 期
页码：
收录情况： SCI
摘要： Cuticular wax, a critical defense layer for plants, remains a relatively unexplored factor in rumen fermentation. We investigated the impact of cuticular wax on rumen fermentation using triticale as a model. In total, six wax classes were identified, including fatty acids, aldehydes, alkane, primary alcohol, alkyresorcinol, and beta-diketone, with low-bloom lines predominated by 46.05% of primary alcohols and high-bloom lines by 35.64% of beta-diketone. Low-wax addition (2.5 g/kg DM) increased the gas production by 19.25% (P < 0.05) and total volatile fatty acids by 6.34% (P > 0.05), and enriched key carbohydrate-fermenting rumen microbes like Saccharofermentans, Ruminococcus, and Prevotellaceae, when compared to non-wax groups. Metabolites linked to nucleotide metabolism, purine metabolism, and protein/fat digestion in the rumen showed a positive correlation with low-wax, benefiting rumen microbes. This study highlights the intricate interplay among cuticular wax, rumen microbiota, fermentation, and metabolomics in forage digestion, providing insights into livestock nutrition and forage utilization.
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