Publication Date

1993

Description

The ensiling-process is based on anaerobic conditions. Therefore, it is important to get "air tight" parcels covering big-bale silage. Wrapping round bales wilh stretch film has improved silage quality, and reduced diy matter (OM) and energy losses. In this experiment we studied the influence of stretch film quality, film thickness, .storage temperature and storage place on fermentation, microbial growth/ and DM losses. Additionally, oxygen permeability of stretch film wrapped in 4 or 6 layers around artificial bales (metal) and DM losses was tested In a model. High storage temperature, low total film thickness and high film permeability to oxygen increased fermentation products, fungal growth and DM loss. Low total film thickness also increased oxygen leakage. There was a good correlation between oxygen leakage into metal bales and DM losses of the same treatments in baled silage (r=-0.986). The model was useful to test film quality and simulating wrapping techniques.

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Influence of Oxygen Leakage Through Stretch Film on Quality of Round Bale Silage

The ensiling-process is based on anaerobic conditions. Therefore, it is important to get "air tight" parcels covering big-bale silage. Wrapping round bales wilh stretch film has improved silage quality, and reduced diy matter (OM) and energy losses. In this experiment we studied the influence of stretch film quality, film thickness, .storage temperature and storage place on fermentation, microbial growth/ and DM losses. Additionally, oxygen permeability of stretch film wrapped in 4 or 6 layers around artificial bales (metal) and DM losses was tested In a model. High storage temperature, low total film thickness and high film permeability to oxygen increased fermentation products, fungal growth and DM loss. Low total film thickness also increased oxygen leakage. There was a good correlation between oxygen leakage into metal bales and DM losses of the same treatments in baled silage (r=-0.986). The model was useful to test film quality and simulating wrapping techniques.