Dietary supplementation of seaweed reduces methanogenesis from rumen microbial fermentation in vitro via changing keystone microbiota
文献类型：期刊论文
| 作者 | Sun, Jian1; Xu, Yingyi1; Zhang, Jieyi1; Zhao, Guangyong1; Duan, Delin3; Wu, Ning2,3; Li, Meng M.1 |
| 刊名 | ANIMAL FEED SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2026 |
| 卷号 | 331页码:17 |
| 关键词 | Anaerobic fermentation Methane Microbiota Network analysis Rumen |
| ISSN号 | 0377-8401 |
| DOI | 10.1016/j.anifeedsci.2025.116596 |
| 通讯作者 | Wu, Ning(wuning@qdio.ac.cn) ; Li, Meng M.(limeng2021@cau.edu.cn) |
| 英文摘要 | Ruminants are major contributors to global methane (CH4) emissions, thus mitigating CH4 production in the rumen can reduce their carbon footprint and improve the sustainability of livestock production. The objectives of this study were to investigate the effects of seaweed species and dosages on ruminal fermentation, CH4 production, and microbial communities associated with methanogenesis in vitro. Five seaweed species, including Enteromorpha prolifera (E. prolifera), Sargassum horneri (S. horneri), Sargassum serratum (S. serratum), Laurencia tristicha (L. tristicha), and Asparagopsis taxiformis (A. taxiformis), were analyzed at 2 supplementation dosages (2.5 % and 5.0 % of DM) to evaluate their impact on CH4 mitigation. All seaweed additions significantly decreased CH4 production, except for E. prolifera at the 2.5 % dosage. Notably, a 5.0 % of A. taxiformis supplementation reduced CH4 production by 24 % relative to the control (CON) (P < 0.01). Adding 2.5 % of A. taxiformis decreased 48 h DM degradability compared to CON (P < 0.05). Additionally, total and individual volatile fatty acids (VFA) were lower in all seaweed supplementation treatments than CON (P < 0.05), except for propionate in the 2.5 % S. horneri and A. taxiformis treatments. The inclusion of A. taxiformis shifted the composition of microbial taxa at the genus level according to the principal-coordinate analysis. Adding E. prolifera, S. horneri, and A. taxiformis enhanced positive correlations within Bacteroidota, suggesting seaweed could modulate the stability of Bacteroidota. Co-occurrence network analysis identified keystone taxa with distinct structural roles. Succinivibrio and Lachnospiraceae_UCG-008 served as module hubs regulating VFA production, while Papillibacter acted as connectors stabilizing interactions among modules. Linear discriminant analysis effect size analysis indicated that UCG_004, Butyrivibrio, UCG_002, Ruminobacter, Anaerovibrio, and Family_XIII_AD3011 could serve as biomarkers for E. prolifera, S. horneri, and A. taxiformis supplementation to reduce ruminal methanogenesis. Anaerobibrio was positively correlated with CH4 production, while Mogibacterium was negatively correlated with CH4 production (P < 0.05). In conclusion, seaweed supplementation can effectively reduce CH4 emissions from ruminants by altering the rumen microbiota and potentially stabilizing the microbiota involved in fermentation. |
| WOS关键词 | METHANE |
| 资助项目 | National Key Technologies R&D Program of China[2022YFA1304201] ; National Undergraduate Training Program for Innovation and Entrepreneurship ; Asia Collaboration Project on Development of Ecological Marine Ranching ; Ministry of Foreign Affairs for the Marine Ranching and Demonstration ; Qingdao West Coast New District University Presidents Fund[E42424101N] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001638186200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204448]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 通讯作者 | Wu, Ning; Li, Meng M. |
| 作者单位 | 1.China Agr Univ, Coll Anim Sci & Technol, State Key Lab Anim Nutr & Feeding, Beijing 100193, Peoples R China 2.Qingdao Marine Sci & Technol Ctr, Lab Marine Drugs & Bioprod, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Breeding Biotechnol & Sustainable Aquacult, Shandong Prov Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jian,Xu, Yingyi,Zhang, Jieyi,et al. Dietary supplementation of seaweed reduces methanogenesis from rumen microbial fermentation in vitro via changing keystone microbiota[J]. ANIMAL FEED SCIENCE AND TECHNOLOGY,2026,331:17. |
| APA | Sun, Jian.,Xu, Yingyi.,Zhang, Jieyi.,Zhao, Guangyong.,Duan, Delin.,...&Li, Meng M..(2026).Dietary supplementation of seaweed reduces methanogenesis from rumen microbial fermentation in vitro via changing keystone microbiota.ANIMAL FEED SCIENCE AND TECHNOLOGY,331,17. |
| MLA | Sun, Jian,et al."Dietary supplementation of seaweed reduces methanogenesis from rumen microbial fermentation in vitro via changing keystone microbiota".ANIMAL FEED SCIENCE AND TECHNOLOGY 331(2026):17. |
入库方式： OAI收割
来源：海洋研究所
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