M3.9: Pasture (continued): ANSC 100 Summer 2018 (WC).pdf

Plastic sleeves or bonnets can reduce large round

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Plastic sleeves or bonnets can reduce large round bale storage losses. Large bales (round or square) can be preserved using plastic wrap. If the hay is wet, plastic wrapped pales allow fermentation into highly palatable silage or “haylage”. If the hay is dry, wrapped bales can be stored outdoors with no storage loss. Credit: Harold Harpster Bales can be wrapped individually or in a tube. Credit: Public Domain via Wikimedia
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6/10/18, 2)27 PM M3.9: Pasture (continued): ANSC 100 Summer 2018 (WC) Page 5 of 8 Speaking of silage, let’s take a look at that method of preserving forages. As mentioned previously, making silage involves the fermentation process in the absence of oxygen. In essence, the fermentation process relies on the production of acid.If properly completed, the low pH preserves the forage from decomposition in the absence of oxygen. Credit: Harold Harpster The basics of silage making have been understood for years- chop the forage finely and make sure no oxygen reaches the mass. Illustrated here is a very early “pit silo” dug into the earth. Credit: Harold Harpster There are several common problems that arise with making silage. The first is improper moisture. In order for the fermentation process to progress, most forages require about 40-60% water. If the forage is too dry or too wet, inadequate fermentation or spoilage will result. The second problem is too much oxygen. Remember that fermentation requires anaerobic conditions. A poor silo or forages fermented without packing (packing eliminates air pockets) don’t ferment properly. Finally, the protein and energy composition of the plant must be correct. Legumes are sometimes difficult to ensile because of their high protein content and high calcium content (calcium acts as a buffer to the expected drop in pH). If there is
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  • Spring '17
  • Robert mikesell
  • Test Prep, Silage, Bales, Harold Harpster, Hay tedding, Hay Baling

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