Fermentation process during the ensiling of green forage low in nitrate. 2. Fermentation process after supplementation of nitrate, nitrite, lactic acid bacteria and formic acid

Kaiser, E.; Weiss, K.

Archiv für Tierernährung 50(2): 187-200


ISSN/ISBN: 0003-942X
PMID: 9324922
Accession: 002841153

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Orchardgrass (Dactylis glomerata) or a grass-legume mixture, both low in nitrate, were ensiled with added nitrate or nitrite (0.05 or 0.01% nitrogen in DM), inoculants (lactic acid bacteria) or formic acid (4.6 litre/t green matter) for up to 180 days. Silages with nitrate or nitrite did not contain butyric acid. Nitrite was more efficient in preventing butyric acid formation. Nitrite and nitrate increased lactic acid production. Addition of inoculants increased lactic acid production and reduced pH compared with controls. Formation of butyric acid was reduced. Inoculants altered degree of fermentation and formation of lactic acid byproducts. Effects of formic acid were not clear.