Thought Process To Co-ensiling Forage and Byproducts

Transcription

1 Thought Process To Co-ensiling Forage and Byproducts Properly Representing Purdue University ABE: Dennis Buckmaster ANSC: Patrick Gunn, Scott Lake, Ron Lemenager, Shawn Donkin, Matt Claeys, Tamilee Nennich, Nicole Schmelz AGRY: Lori Snyder, Ricardo Paulo Co-ensiled products for Wet DGS 1

2 Outline Why Terminology Considerations Examples Our research methods URL to get this presentation WHY Improve utilization (quantity and efficiency) of DGS by: Making long-term storage/delivery stability feasible in small and medium cattle feeding operations Enable utilization of other marginal feedstocks Capitalize on the moisture and chemical attributes of the DGS 2

3 TERMINOLOGY DGS Wet Modified wet Dry Co-ensiling Re-co-ensiling CONSIDERATIONS

4 CONSIDERATIONS Moisture Density Target nutrient profile Particle size distribution (mixing) Costs & benefits 2 & 3 component blends Forage Moisture Continuum 12% 20% 30% 40% 70% FIRE Safe Apply Suitable for silage for preservative hay or dry in-barn Baled Silage Bunker Tower 4

5 Basics of Silage Making Oxygen consumed by respiration Sugars used Heat generated Basics of Silage Making Oxygen supply is depleted Acid-producing bacteria begin growth 5

6 Basics of Silage Making No oxygen (anaerobic) Bacteria produce acid, reducing ph Bacteria die off after ph drops Basics of Silage Making ph is lowered Microbial population is dead Anaerobic conditions remain 6

7 Fermentation (anaerobic process) (sugar) + (bacteria) (acid) + (carbon dioxide) + (ammonia) + (hydrogen) DGS profile (in round numbers) Moisture Dry 10% Modified wet 50% +/- Wet 65% +/- CP 30% NDF 40% ADF 15% Fat 10% 7

8 Distillers Grain Other feedstuff D M Moisture DM Moisture DM Moisture DM Moisture DM Moisture 20% % 20% % 20% % 20% % 20% % 30% % 40% % 30% % 30% % d a Tower & Bag recommendation 40% % 40% % b c 30% % 30% % Bunker recommendation 40% % 40% % 50% % 50% % 50% % 50% % 50% % 60% % 70% % 60% % 60% % 60% % 5:1 3:1 3:2 2:3 1:1 1:3 1:5 4:1 2:1 1:2 1:4 70% % 70% % 70% % 60% % Ratio Interpolation Scale 70% % 80% % 80% % 80% % 80% % 80% % 90% % 90% % 90% % 90% % 75:25 blend 50:50 blend 25:75 blend 3:1 1:1 1:3 Interpolate between vertical lines for blends of other proportions 90% % Example line: 50% moisture distillers grain blended with 80% moisture grass a. 50:50 blend will be 65% moisture, 35% DM and is suitable for any silage structure b. 75(distillers):25(other) blend will be 57.5% moisture, 42.5% DM, too dry for a bunker c. 25(distillers):75(other) blend will be 72.5% moisture, 27.5% DM, too wet for good silage d. 2:3 ratio blend will be about 67% moisture, 23% DM, upper end of bunker moisture range EXAMPLE 1 Corn stalks Modified wet distiller s grains with solubles Moisture Nutrient profile Crude Protein Energy 8

9 Direct-cut Grass EXAMPLE 2 Direct-cut grass Modified wet distiller s grains with solubles Moisture Nutrient profile Crude protein Energy Rumen degradable protein 9

10 EXAMPLE 3 Direct-cut grass Dried distiller s grains with solubles Moisture Nutrient profile Crude protein Energy Rumen degradable protein EXAMPLE 4 your assignment Corn stalks Modified wet distiller s grains with solubles Soyhulls Glycerol (liquid, but no water) 10

11 Our Research Methods Lab Scale Silos Hand packed Light vacuum Triple bag seal Ribbon mixer 60 to 65% moisture Varied proportions Methods Farm Scale silos TMR mixer Bagged silage Later used in nutrition studies Control (forage alone) treatments also ensiled 11

12 Methods Aerobic Stability Insulated boxes Datalogged thermocouple readings Time to reach 2oC rise Determining Ratios Moisture Proportions Calculations Re-Co-ensiling Recipe Helper INPUTS TIPS Mo moisture of other feedstuff decimal from sample data Mmdg moisture of modified wet distillers grain 0.51 decimal from sample data Mw moisture of water 1.00 decimal from sample data Wo weight of other feedstuff to use lb set or use solver to determine Wmdg weight of modified wet distillers grains to use lb set or use solver to determine Ww weight of water to use 0.0 lb set or use solver to determine tf target fraction of distillers grain in the blend (wet basis) 0.75 decimal user choice tm target moisture content of the blend decimal user choice tb target batch size 500 lb user choice INTERMEDIATE & OUTPUT Wdmdg DM of distillers grain 61.3 lb DM =Wmdg*(1-Mmdg) Wdmo DM of other feedstuff lb DM =Wo*(1-Mo) Wdmt DM total lb DM =Wdmdg+Wdmo Wt total weight lb =Wo+Wmdg+Ww DMb DM concentration of the blend 0.39 decimal =Wdmt/Wt Mb Moisture content of the blend decimal =1-DMb fdgdb fraction of DM from distillers grains 0.32 decimal =Wdmdg/Wdmt fdgwb fraction of wet weight from distillers grains 0.25 decimal =(Wmdg)/Wt bse batch size error 0.0 lb =tb-wt 12

13 Qualitative Observations CONSIDERATIONS in REVIEW Moisture Density Target nutrient profile Particle size distribution (mixing) Costs & benefits 2 & 3 component blends 13

14 Thank you for your interest and attention. Any questions? TO GET THIS PPT For a limited time only W9408/coensiling.pptx 14