Effects of sodium nitrite treatment on the fermentation quality of red clover-grass silage harvested at two dry matter concentrations and inoculated with clostridia

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Konig , W , Konig , E , Elo , K , Vanhatalo , A & Jaakkola , S 2019 , ' Effects of sodium nitrite treatment on the fermentation quality of red clover-grass silage harvested at two dry matter concentrations and inoculated with clostridia ' , Agricultural and Food Science , vol. 28 , no. 4 , pp. 155-164 . https://doi.org/10.23986/afsci.85114

Title: Effects of sodium nitrite treatment on the fermentation quality of red clover-grass silage harvested at two dry matter concentrations and inoculated with clostridia
Author: Konig, Walter; Konig, Emilia; Elo, Kari; Vanhatalo, Aila; Jaakkola, Seija
Other contributor: University of Helsinki, Doctoral Programme in Sustainable Use of Renewable Natural Resources
University of Helsinki, Production Animal Medicine
University of Helsinki, Department of Agricultural Sciences
University of Helsinki, Department of Agricultural Sciences
University of Helsinki, Department of Agricultural Sciences








Date: 2019
Language: eng
Number of pages: 10
Belongs to series: Agricultural and Food Science
ISSN: 1459-6067
DOI: https://doi.org/10.23986/afsci.85114
URI: http://hdl.handle.net/10138/309629
Abstract: Legumes are particularly susceptible to clostridial fermentation when ensiled because of their high buffering capacity and water-soluble carbohydrate contents. The aim of the study was to investigate if a sodium nitrite treatment (900 g t(-1) herbage in fresh matter [FM]) impairs butyric acid fermentation of red clover-timothy-meadow fescue silage compared with formic acid-treated (4 l t(-1) FM) and untreated silage. The sward was harvested after wilting at low dry matter (DM) (LDM, 194 g kg(-1)) and high DM (HDM, 314 g kg(-1)) concentrations and half of the herbage batches were inoculated with Clostridium tyrobutyricum spores before additive treatments. No butyric acid fermentation was observed in HDM silages probably because of the relatively high DM and nitrate contents of the herbage mixture. In LDM silage butyric acid was detected only in formic acid-treated silage, and the number of clostridia copies was higher in formic acid-treated than in sodium nitrite treated silage. Sodium nitrite treatment was superior to FA treatment in suppressing clostridial fermentation in the LDM silages.
Subject: clostridia
formic acid
nitrite
silage additive
legumes
MILK-PRODUCTION
COMBINATION
INHIBITION
HEXAMINE
NITRATE
412 Animal science, dairy science
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