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Harvesting,. Harvesting. Storing. and Feeding. High Moisture Forage. David C. Ditsch Dept. Plant and Soil Sciences UK Robinson Station. Silage & Haylage. SILAGE - Forage that has undergone anaerobic fermentation. More nutrients are preserved Less dependent on weather.
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Harvesting, Harvesting Storing and Feeding High Moisture Forage David C. Ditsch Dept. Plant and Soil Sciences UK Robinson Station
Silage & Haylage SILAGE - Forage that has undergone anaerobic fermentation More nutrients are preserved Less dependent on weather
Silage Fermentation Silage pH pH 6.0 pH 4.2 pH 3.8 Acetic acid bacteria Lactic acid bacteria 1 2 3 4 7 14 20 28 Days after ensiling
Silage pH pH Alfalfa Sorghum-sudan
Crops for Silage Legumes Alfalfa Red clover Soybean Cool Season Grasses Fescue Orchardgrass Warm-Season Grasses Switchgrass Eastern Gamagrass Bermudagrass Summer Annual Grasses Sorghum-sudangrass Millets Teff? Small Grains Rye Wheat Triticale
Alfalfa Quality & Weather Forage Type CP Digestibility NDF Well-cured hay 20 64 46 Rain damaged hay 20 57 54 Fresh-Cut Crop 23 70 43
Field curing 25% loss Harvesting 15% loss Storage 35% loss Feeding 30% loss Losses during Hay Harvest and Storage Loss Accumulates with Each Step If maximum losses occur, only 30% of the crop is consumed by the animal. 5 tons/ac dry matter produced 3.75 tons/ac dry matter remains 3.2 tons/ac dry matter remains 1.6 tons/ac dry matter consumed 2.3 tons/ac dry matter remains Forages Group University of Kentucky
Silage Harvest & Storage Field wilting 6% loss SAVINGS ARE POSSIBLE FOR EACH STEP Harvesting 6% loss If maximum losses occur, 77% of the dry matter produced is available for livestock consumption. Storage 5% loss Feeding 8% loss Forages Group University of Kentucky
Frequently Asked Questions When do I cut?
Mower Rake Baler Tractor Bale Spear Wrapper Frequently Asked Questions What will I need?
Frequently Asked Questions When should I bale? Ideal moisture range is 45-65 %
Alfalfa Round Bale Silage Crude Protein Crude Protein (%) Moisture Concentration at Baling (%)
Digestibility IVDMD (%) Hay --------Silage -------- Moisture Concentration at Baling (%)
Storage Losses Hay Storage Loss (%) --------Silage -------- Baling Moisture (%)
Frequently Asked Questions How should I make the bales? Tight dense bales are less likely to spoil Plastic twine is recommended. Avoid the use of sisal twine.
Frequently Asked Questions How soon should I wrap the bales?
Wrap ASAP After Baling Within 4-6 hrs after baling Day 1 Day 2 pH Delayed wrapping prevented adequate fermentation as reflected in the higher pH value Wrapping Treatment
Frequently Asked Questions Wrap at the storage site. Choose a well drained site away from trees. Spray perimeter to kill weeds that may habor rodents and insects. Where should I wrap bales?
Frequently Asked Questions What kind of plastic should be used?
Frequently Asked Questions Alfalfa silage & hay 2, 4, or 6 layers of film How much plastic needs to be applied? Hay 6 layers 2 layers 4 layers Storage Treatment Consumption 2 layers 53% 4 layers 84% 6 layers 88% Hay 44%
Frequently Asked Questions What should I do with the used plastic?
The Most Frequently Asked Question? Which round bale wrapper style is best?
Platform Wrappers Good preservation Trailer or 3-point hitch Round or square bales Tractor hydraulics or gas engine $2.50 to $3.00 per bale for 4 layers Loader arm or load with front-end loader
Platform Wrappers Concerns: Plastic Cost Labor per bale
In-Line Wrappers Good preservation Bales end-to-end Less labor for wrapping Higher equipment cost Lower plastic cost (1/2 or less)
In-Line Wrappers Concerns: Uniformity of adjacent bales Density and Diameter Seal ends of rows
Other Wrappers End-to-End Individual Wrap Swinging Arm Wrapper
Other Wrappers Concerns: Labor Plastic on bottoms of bales Concerns: Weight Need big tractor
Guidelines for Success • 45 - 65% Moisture • High density bales • Quick wrapping • 4-6 layers of film • Patch holes (esp early)