The effects of inoculation, addition of glucose and mincing on fermentation and proteolysis in ryegrass ensiled in laboratory silos

S. J.E. Heron*, R. A. Edwards, P. McDonald

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    22 Citations (Scopus)

    Abstract

    Ryegrass (153 g dry matter (DM) kg-1; 180 g water-soluble carbohydrates (WSC) kg-1 DM) was ensiled directly, and after inoculation with a commercial product containing Lactobacillus plantarum and Pediococcus acidilactici to provide 104, 106 or 108 organisms g-1. The effects of mincing and of adding glucose (20 g kg-1) were also investigated. Inoculation with homofermentative lactic acid bacteria stimulated a more efficient fermentation, rapid acidification and the production of silages with higher lactate and lower acetate contents than uninoculated silages: there was some reduction in proteolysis and a considerable decrease in deamination. There was no advantage in exceeding 106 organisms g-1, but the 104 level was insufficient. There was no advantage in ensiling minced rather than chopped material, except that proteolysis was reduced. The addition of glucose did not have a beneficial effect in this experiment.

    Original languageEnglish
    Pages (from-to)85-96
    Number of pages12
    JournalAnimal Feed Science and Technology
    Volume19
    Issue number1-2
    DOIs
    Publication statusPrint publication - Jan 1988

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