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- Title
西藏地区全株玉米与紫花苜蓿混合青贮效果研究.
- Authors
吴陆处; 易政宏; 陈鑫艳; 吕 志; 商振达; 刘锁珠; 谭占坤; 孙 磊
- Abstract
The experiment was conducted to detect the effect of silage with different mixed ratio of whole maize and alfalfa on nutrient content, fermenting quality and microbial diversity in Tibet. The experiment was set up with six groups, group A, group B and group C were normal mixing groups, and the ratio of corn to alfalfa was 2∶1, 1∶1 and 1∶2, respectively. Group FA, group FB and group FC were mixed silage groups, and the ratio of corn to alfalfa was 2∶1, 1∶1 and 1∶2, respectively. Each treatment had three replicates and silage lasted for 60 d. The results showed that with the proportion of alfalfa raised, the content of crude protein, crude fiber, crude ash, and ammonia nitrogen in silage were obviously increased, and crude fat content were obviously decreased. A total of 22 phyla, 46 classes, 115 orders, 224 families and 643 genera of bacteria were detected in six treatment groups. At phylum level, the dominant bacterial groups before and after silage were Cyanobacteria and Firmicutes, respectively. At class level, the dominant bacterial groups before and after silage were Oxyluminobacteria and Bacillus, respectively. At the order level, the dominant bacteria before and after silage were Chloroplast bacilli and Lactobacilli. At the family level, the dominant bacteria before and after silage were Chloroplast and Lactobacillaceae, respectively. At the genus level, the dominant bacteria before and after silage were Chloroplast and Lactobacillus, respectively. The study indicates that the silage quality is better when the mixture ratio of whole corn and alfalfa is 1∶1.
- Subjects
TIBET (China); MICROBIAL diversity; BACILLUS (Bacteria); LACTOBACILLACEAE; CORN; ALFALFA; LACTOBACILLUS; SILAGE; LACTIC acid bacteria
- Publication
Feed Research, 2023, Vol 46, Issue 4, p108
- ISSN
1002-2813
- Publication type
Article
- DOI
10.13557/j.cnki.issn1002-2813.2023.04.022