open access publication

Article, 2024

Comparison of the Chemical and Microbial Composition and Aerobic Stability of High-Moisture Barley Grain Ensiled with Either Chemical or Viable Lactic Acid Bacteria Application

Fermentation, ISSN 2311-5637, Volume 10, 1, Page 62, 10.3390/fermentation10010062

Contributors

Jatkauskas, Jonas 0000-0002-0394-8281 (Corresponding author) [1] Vrotniakiene, Vilma 0000-0002-1614-4012 [1] Eisner, Ivan [2] [3] Witt, Kristian Lybek [2] [3] do Amaral, Rafael Camargo [2] [3]

Affiliations

  1. [1] Lithuanian University of Health Sciences
    2. [NORA names: Lithuania; Europe, EU; OECD];
  2. [2] Chr. Hansen (Denmark)
    3. [NORA names: Novonesis; Private Research; Denmark; Europe, EU; Nordic; OECD];
  3. [3] Chr. Hansen Holding A/S, Hansen Animal Health and Nutrition, 2970 Hørsholm, Denmark;, deivei@chr-hansen.com, (I.E.);, dkkrwi@chr-hansen.com, (K.L.W.);, brracl@chr-hansen.com, (R.C.d.A.)

Abstract

This experiment was aimed at comparing how a chemical additive or an inoculant would affect the dry matter (DM) losses, fermentation pattern, yeast and mold counts, and aerobic stability (AS) of the ensiled high-moisture barley grain (675 g kg−1 DM). Crimped barley grain was ensiled with or without chemical additive AIV Ässä Na and an inoculant SiloSolve FC, totaling three treatments (1 × 3 factorial scheme) for the fermentation periods lasting 7, 14, 28, 60, and 90 days. The application of a chemical additive showed higher pH levels, retained water-soluble carbohydrates (WSCs) better, lowered DM loss, and reduced concentrations of fermentation products. Barley grain treated with chemicals initially showed a marked reduction in yeast and fungal growth and a higher AS up to day 60 of storage but became less effective in later stages of storage, leading to decreased AS. Barley grain inoculated with homo- and heterofermentative strains had decreased silage pH; its WSC content was similar to control and had higher content of weak acids and 1,2 propanediol, reducing mold and yeast counts. With fermentation duration from 28 days and beyond (i.e., 90 days), the inoculant treatment achieved the longest AS and the lowest increase in pH and weight loss during the period of air exposure.

Keywords

DM losses, HOMO, Microbial, acid, addition, aerobes, aerobic stability, air exposure, applications, bacteria application, barley, barley grain, carbohydrate, chemical, chemical additives, comparison, composition, concentrations of fermentation products, content, control, count, days, decreased silage pH, dry matter, duration, ensiling, experiments, exposure, fermentation, fermentation duration, fermentation pattern, fermentation period, fermentation products, fungal growth, grain, growth, heterofermentative strains, higher content, higher pH levels, increase, inoculation, inoculation treatments, lactic acid bacteria applications, levels, loss, matter, microbial composition, mold, mold counts, pH, pH levels, patterns, period, periods of air exposure, production, propanediol, reduced concentrations, reduced mould, reduction, silage pH, stability, stage, stages of storage, storage, strain, treatment, water-soluble carbohydrate content, water-soluble carbohydrates, weak acids, weight, weight loss, yeast, yeast counts

Data Provider: Digital Science

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