A survey of fermentation products and bacterial communities in corn silage produced in a bunker silo in China

Chao Wang, Hongyan Han, Xueying Gu, Zhu Yu, Naoki Nishino

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

To evaluate the current practice of corn silage management in China, samples of bunker-made silage were collected from 14 farms within a 500-km radius of Beijing for the analysis of fermentation products and bacterial communities. Mean values for dry matter (DM) content were as low as 250g/kg in both corn stover (St) and whole crop corn (Wc) silages, and pH values averaged 4.48 and 3.73, respectively. Only three of the 14 silages exhibited a lactic-to-acetic acid ratio >1.0, indicating that the presence of acetic acid was predominant in fermentation. Although 1,2-propanediol content was marginal in most cases (25g/kg DM. In contrast, 3 St silages had large amounts (>10g/kg DM) of butyric acid, and two of the three butyrate silages also had high concentrations of 1-propanol. Denaturing gradient gel electrophoresis analysis demonstrated that the bacterial community appeared similar in 10 out of the 14 silage samples. Bands indicating Lactobacillus buchneri, L. acetotolerans and Acetobacter pasteurianus were found in both the St and Wc silages, accounting for the high acetic acid content found across silage samples.

Original languageEnglish
Pages (from-to)32-36
Number of pages5
JournalAnimal Science Journal
Volume85
Issue number1
DOIs
Publication statusPublished - Jan 2014

Fingerprint

bunker silos
Silage
corn silage
bacterial communities
silage
Fermentation
Zea mays
China
fermentation
whole crop silage
acetic acid
stover
Acetic Acid
Lactobacillus acetotolerans
Acetobacter pasteurianus
Lactobacillus buchneri
1-propanol
propanediols
corn stover
butyric acid

Keywords

  • Bacteria
  • Corn
  • DGGE
  • Silage

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Medicine(all)

Cite this

A survey of fermentation products and bacterial communities in corn silage produced in a bunker silo in China. / Wang, Chao; Han, Hongyan; Gu, Xueying; Yu, Zhu; Nishino, Naoki.

In: Animal Science Journal, Vol. 85, No. 1, 01.2014, p. 32-36.

Research output: Contribution to journalArticle

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