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New Developments in Analytical Evaluation of Forages and Total Mixed Rations

New Developments in Analytical Evaluation of Forages and Total Mixed Rations. P. C. Hoffman R.D. Shaver Dept. of Dairy Science University of Wisconsin. NDF Digestibility. + Buffers + Rumen Fluid. + NDF Solution + Reflux. Incubate 48 h. DM and NDF Digestibility Procedures.

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New Developments in Analytical Evaluation of Forages and Total Mixed Rations

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  1. New Developments in Analytical Evaluation of Forages and Total Mixed Rations P. C. Hoffman R.D. Shaver Dept. of Dairy Science University of Wisconsin

  2. NDF Digestibility

  3. + Buffers + Rumen Fluid + NDF Solution + Reflux Incubate 48 h DM and NDF Digestibility Procedures IVTDMD = Cell Solubles + Digested NDF (80.0 % of DM) NDFD = Digested NDF/NDF (50% of NDF)

  4. Legume Silage/Hay Grass Silage/Hay Corn Silage Poor Fair Average Good Excellent 20 25 30 35 40 45 50 55 60 65 70 75 NDF Digestibility, % of NDF Figure 2. Ranges of NDF digestibility for common forages. The NDF digestibility ranges and guidelines are based on a 48 h in vitro true dry matter digestibility assay. (Marshfield Soil and Forage Analysis Laboratory, University of Wisconsin-Madison: 2001 Nutrient Requirements of Dairy Cattle).

  5. 1 Day Forage Analysis

  6. 2 Day Forage Analysis

  7. 4-5 Day Forage Analysis

  8. TMR – Quality Control Analysis

  9. Corn Silage Alfalfa Silage Forage Test Ration Formulation * Computer Models * Experience

  10. Corn Silage Alfalfa Silage Forage Test Ration Formulation * Computer Models * Experience INCORRECT ASSUMPTIONS Instruction Sheets Add Minerals Communication Add Feed Additives Unloaders Pre Processing Loaders DM Changes Add Grains Contamination Add Proteins/Byproducts Mixing Add Dry Hay Delivery Feed Add Liquid Feeds

  11. SOIL and FORAGE ANALYSIS LABORATORY University of Wisconsin 8396 Yellowstone Drive, Marshfield, WI 54449 Phone 715-387-2523 Fax 715-387-1723 Madison/Extension Acct. Number ###### Date 4-5 Day Laboratory Analysis MARS Comments TMR- Quality Control Lab Number 1459 Sample Description TMR TEST 1 Item Abreviation Unit Value Method 46.8 Dry Matter DM % as fed WC 53.2 Moisture % as fed WC Protein Fractions 17.40 Crude Protein CP % of DM WC Fiber Fractions Acid Detergent Fiber ADF % of DM NR 30.73 Neutral Detergent Fiber aNDF % of DM WC 60.77 Neutral Detergent Fiber Digestibiltiy 48 h NDFD % of NDF WC Carbohydrates and Fats 40.83 Non Fiber Carbohydrate NFC % of DM C 4.54 Fat % of DM WC Energy Calculations:NRC,2001 **** Verified **** 74.20 Total Digestible Nutrients,1X TDN % of DM C 0.76 Net Energy , Lactation, 3X Nel Mcals/lb C 0.85 Net Energy , Maintenance NEm Mcals/lb C 0.56 Net Energy , Gain NEg Mcals/lb C 1.27 Metabolizable Energy ME Mcals/lb C Macro Minerals Micro Minerals Phosphorus P 0.44 Iron Fe % of DM WC ppm NR Calcium Ca 0.91 Manganese Mn % of DM WC ppm NR Potassium K Zinc Zn % of DM NIR ppm NR Magnesium Mg Copper Cu % of DM NIR ppm NR Sodium Na % of DM NR 7.54 Chloride Cl Ash % of DM NR %of DM WC Sulfur S % of DM NR

  12. SOIL and FORAGE ANALYSIS LABORATORY University of Wisconsin 8396 Yellowstone Drive, Marshfield, WI 54449 Phone 715-387-2523 Fax 715-387-1723 Madison/Extension Acct. Number ###### Date MARS Comments TMR- Quality Control Lab Number 1459 Sample Description TMR TEST 1 Item Abreviation Unit Value Method 46.8 Dry Matter DM % as fed WC 53.2 Moisture % as fed WC Protein Fractions 17.40 Crude Protein CP % of DM WC Fiber Fractions Acid Detergent Fiber ADF % of DM NR 30.73 Neutral Detergent Fiber aNDF % of DM WC 60.77 Neutral Detergent Fiber Digestibiltiy 48 h NDFD % of NDF WC Carbohydrates and Fats 40.83 Non Fiber Carbohydrate NFC % of DM C 4.54 Fat % of DM WC Energy Calculations:NRC,2001 **** Verified **** 74.20 Total Digestible Nutrients,1X TDN % of DM C 0.76 Net Energy , Lactation, 3X Nel Mcals/lb C 0.85 Net Energy , Maintenance NEm Mcals/lb C 0.56 Net Energy , Gain NEg Mcals/lb C 1.27 Metabolizable Energy ME Mcals/lb C Macro Minerals Micro Minerals Phosphorus P 0.44 Iron Fe % of DM WC ppm NR Calcium Ca 0.91 Manganese Mn % of DM WC ppm NR Potassium K Zinc Zn % of DM NIR ppm NR Magnesium Mg Copper Cu % of DM NIR ppm NR Sodium Na % of DM NR 7.54 Chloride Cl Ash % of DM NR %of DM WC Sulfur S % of DM NR

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