Impact of Packing Density on the Bacterial Community, Fermentation, and In Vitro Digestibility of Whole-Crop Barley Silage
Lin Sun,
Na Na,
Xiaomei Li,
Ziqin Li,
Chao Wang,
Xiaoguang Wu,
Yanzi Xiao,
Guomei Yin,
Sibo Liu,
Zhiping Liu,
Yanlin Xue,
Fuyu Yang
Affiliations
Lin Sun
College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
Na Na
Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
Xiaomei Li
College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
Ziqin Li
Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
Chao Wang
Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
Xiaoguang Wu
Inner Mongolia Autonomous Region Land Surveying and Planning Institute, Hohhot 010055, China
Yanzi Xiao
College of Agriculture and Forestry, Hulunbuir University, Hulunbuir 021000, China
Guomei Yin
Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
Sibo Liu
Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
Zhiping Liu
Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
Yanlin Xue
Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
Fuyu Yang
College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
Packing density has a significant influence on the outcome of ensiling forage. In this study, we aim to investigate the effect of packing density on the ensiling properties, microbiome, and in vitro digestibility of barley silages. Barley was ensiled in polyethylene drum silos (30 L) with respective densities of 600, 650, 700, and 750 kg/m3 fresh matter (FM), and stored for 60 days. The bacterial communities, fermentation quality, and in vitro digestibility were analyzed. Fresh barley had a low count of lactic acid bacteria (LAB, 104 cfu/g of FM), and Lactobacillus was nearly undetectable (3-N), ethanol, neutral detergent fiber (NDF), and acid detergent fiber (ADF) of barley silage (p p Enterobacter (from 47.4% to 35.4%) and Clostridium (from 13.5% to 3.8%), and increased the abundance of Lactobacillus (from 1.8% to 17.0%). Thus, packing density positively correlated with Lactobacillus (p Enterobacter (p Enterobacter (p Lactobacillus (p 3 FM resulted in the highest silage quality of the densities tested.
