Comparative Analysis of Wheat Hay and Silage in Methane Production, Fermentation Characteristics and Microbiota Using In Vitro Rumen Cultures

Applied Sciences

Taoqi Shao¹  Haibo Wang²  Wenjing Niu³  Yang He³  Binghai Cao³  Qinghua Qiu³  Huawei Su³ 

[1] Department of Animal Sciences, College of Agricultural, Consumer and Environmental Sciences, University of Illinois, Urbana, IL 61801, USA;Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Southwest Minzu University), Ministry of Education, Chengdu 610041, China;State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;

关键词: whole-crop wheat;    methane mitigation;    rumen fermentation;    high-throughput sequencing;    microbial community;   

DOI  :  10.3390/app10238456

来源: DOAJ

【 摘 要 】

This study determined the effects of wheat stage, preservation treatment, and harvest time on the fermentation characteristics, methane production, and bacterial diversity. In this study, processing wheat into hay can reduce methane production. The MWS7 (wheat harvested at 7:00 in milk stage and preserved as silage) group had a significantly lower CO₂ compared with the DWS15 (wheat harvested at 15:00 in dough stage and preserved as silage) group. Neutral detergent fiber degradation in the hay treatment harvesting at 7:00 was significantly higher than that in other treatments. The butyrate proportion in the DWH7 (wheat harvested at 7:00 in dough stage and preserved as hay) group was higher than that in the MWS7 group. Results from high-throughput sequencing showed that there were differences in the relative abundance of some minor rumen microbiota among the treatments. The MWS7 group had greater microbial diversity and the MWH7 group (wheat harvested at 7:00 in milk stage and preserved as hay) had higher species richness. In addition, the MWH7 group had a lower Methanobrevibacter abundance and methane production. Overall, the MWH7 group may have advantages of rumen fermentation and reduce methane production.

【 授权许可】

Unknown