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© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

The wilting process is required for the preparation of traditional low-moisture silage, which is not only subject to the interference of rainfall during the harvest season in many areas, but also increases labor, economic, and time costs. Therefore, in this experiment, newly harvested alfalfa was supplemented with a complex additive consisting of lactic acid bacteria (LAB), sucrose, and corn flour, and then ensiled directly in order to explore a suitable high-moisture silage processing method. There were four groups: control (CK), 0.01 g/kg LAB plus 2% sugar (S), 0.01 g/kg LAB plus 5% corn flour (C5), and 0.01 g/kg LAB plus 5% corn flour (C10). The results show that all four types of silage had significantly reduced acid detergent fiber, acetic acid content, and ammonia/total nitrogen (p < 0.05). The relative abundance of Lactobacillus spp. was significantly higher (p < 0.05), and that of Weissella, Clostridium sensu stricto 12, and Pantoea genera was significantly lower (p < 0.05) in all four treatments. Group S had significantly increased crude protein content, and groups C5 and C10 had significantly reduced neutral detergent fiber. Overall, group C10 had the highest LA concentration, the highest relative abundance of Lactobacillus spp., and the lowest pH, ammonia/total nitrogen, neutral detergent fiber, and acid detergent fiber. Silage with a complex additive consisting of LAB + 10% corn flour is recommended to achieve good fermentation with high nutritional quality.

Details

Title
Effect of Compound Additives on Nutritional Composition, Fermentation Quality, and Bacterial Community of High-Moisture Alfalfa Silage
Author
Jiang, Heng 1 ; Wang, Haoran 1 ; Bao, Buhe 2 ; Qu, Hui 1 ; Wang, Jiao 1 ; Sun, Le 1 ; Liu, Bin 3 ; Gao, Fengqin 1 

 Institute of Grassland Research Chinese, Academy of Agricultural Science, Huhhot 010010, China; [email protected] (H.J.); [email protected] (H.W.); 
 Hohhot Agricultural and Animal Husbandry Technology Promotion Center, Huhhot 010010, China 
 Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Huhhot 010010, China 
First page
453
Publication year
2023
Publication date
2023
Publisher
MDPI AG
e-ISSN
23115637
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2819442985
Copyright
© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.