Abstract

Background

Due to its hollow stem, ensiling triticale presents a challenge as it may cause an overabundance of oxygen during the fermentation process. This study investigated the effects of Bacillus coagulans (BC) and Lactobacillus plantarum (LP) on the fermentation characteristics, microbial community, and aerobic stability of ensiled triticale. Fresh triticale was wilted at a dry matter content of 350 g/kg. The experiment was arranged in a 2 × 2 factorial design, with both BC and commercial LP added at 0 or 1 × 106 cfu/g of fresh weight (FW) of chopped triticale.

Results

After 60 days of ensiling, the pH, water-soluble carbohydrates (WSC), neutral detergent fiber (NDF), and ammonia nitrogen (NH3-N) of inoculated groups were lower than those of the control group (P < 0.05), especially in the LP + BC treatment (P < 0.05). The lactic acid (LA) concentration, lactic acid/acetic acid (LA/AA), and aerobic stability were also higher (P < 0.05) in the LP + BC treatment than in other treatments. The bacterial diversity was reduced, and the richness was increased by the application of LP and BC individually (P < 0.05). Compared with the control silage, LP-treated silage had higher Lactobacillus (P < 0.05), while BC-treated silage had higher Bacillus and Pediococcus (P < 0.05). The LP + BC-treated silage had higher Lactobacillus, Bacillus, Enterococcus, and Serratia (P < 0.05). Bacillus was negatively correlated with NDF (P < 0.05) and AA (P < 0.05). Lactobacillus was positively correlated with LA (P < 0.05) and LA/AA but negatively with pH and NH3-N (P < 0.05).

Conclusions

The combination of BC and LP may lead to improved ensiled triticale fermentation quality and aerobic stability by inducing alterations in the composition of bacterial communities, which is crucial for the efficient utilization of triticale resources.

Details

Title
Effects of Bacillus coagulans and Lactobacillus plantarum on the fermentation quality, aerobic stability and microbial community of triticale silage
Author
Li, Shengnan 1 ; Ke, Wencan 2 ; Zhang, Qing 3 ; Undersander, Dan 4 ; Zhang, Guijie 2 

 Ningxia University, College of Forestry and Prataculture, Yinchuan, China (GRID:grid.260987.2) (ISNI:0000 0001 2181 583X) 
 Ningxia University, College of Forestry and Prataculture, Yinchuan, China (GRID:grid.260987.2) (ISNI:0000 0001 2181 583X); Ningxia University, Department of Animal Science, Yinchuan, China (GRID:grid.260987.2) (ISNI:0000 0001 2181 583X) 
 South China Agricultural University, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangzhou, China (GRID:grid.20561.30) (ISNI:0000 0000 9546 5767) 
 Madison, Department of Agronomy, University of Wisconsin, WI, USA (GRID:grid.14003.36) (ISNI:0000 0001 2167 3675) 
Pages
79
Publication year
2023
Publication date
Dec 2023
Publisher
Springer Nature B.V.
e-ISSN
21965641
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2850412761
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.