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Managing Nutrients through Precision Feed Management

Managing Nutrients through Precision Feed Management. Paul Cerosaletti Cornell University Cooperative Extension of Delaware County. The Delaware County Precision Feed Management Program: – Where are we?. New York State. New York State. Why is P Increasing?. MASS BALANCE:.

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Managing Nutrients through Precision Feed Management

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  1. Managing Nutrients through Precision Feed Management Paul Cerosaletti Cornell University Cooperative Extension of Delaware County

  2. The Delaware County Precision Feed Management Program: – Where are we? New York State New York State

  3. Why is P Increasing? • MASS BALANCE: INPUTS to basin = 171,300+ kg/yr NET P ACCUMULATION = 106,300+ kg/yr in basin (soils) OR ~ 5 kg P/ha agr. land/yr OUTPUTS from basin in kg/yr = 65,000 kg/yr

  4. The Dairy Farm Mass Nutrient Balance Imported Nutrients Exported Nutrients Farm Boundary Feed Milk Fertilizer Crops Nutrients remaining on farm Bedding Animals Animals Manure Run off Leaching Nutrient Losses to water

  5. Feed Management Recognized • Council for Agricultural Science and Technology (CAST) – Issue Paper 21, 2002 • Animal diet modification to decrease the potential for nitrogen and phosphorus pollution • USDA-NRCS 592 Nutrient Management Planning Standard • Identifies Feed Management as part of a comprehensive nutrient management plan

  6. The Delaware County Precision Feed Management Program • What are we? • A program where county based Extension specialists and University faculty work with dairy farmers and their feed advisors to improve farm economic viability and reduce nutrient imports, accumulations, and manure nutrient excretions on dairy farms through feed management.

  7. Farm Precision Feed Planning The Delaware County Precision Feed Management Program:What do we do? Integration Research & Development Education

  8. Farm PFM plan development • PFM plan implementation • Documenting Impacts Farm PFM Planning • Farmer education • Feed Industry training • Field research • Model Application/Development Integration Research & Development Education

  9. Precision Feed Management:The Process Improved Homegrown Forage Production Precision Diet Formulation & Delivery Reduced Nutrient Overfeeding Improved Nutrient Utilization Implementation of High Forage Diets - Reduced Purchased Feed Nutrient Imports - Reduced Manure Nutrient Excretions - Reduced Nutrient Accumulations - Improved Farm Profitability

  10. Precision Feed Management Planning What it Entails

  11. Farm Precision Feed Planning PFM Planning • What it entails • Forage Management Planning • Feeding Management Planning • Diet modeling and monitoring

  12. PFM Planning • PFM Team meets with Farmer and Feed Consultant • Set goals • Evaluate Corn, Hay and Pasture systems • Assess weak links • Develop Annual farm forage plan (strategies/tactics) • Provide technical assistance Forage Management Planning

  13. Forage Planning Process

  14. Forage Systems Management Strategy examples: • Wide Swath silage harvest • MIG Pasture • Intensive Grass mngmt • Crop species selection • Crop Rotation mngmt

  15. Precision Feed Management: Feeding Management Planning and Implementation Diet Modeling and Monitoring

  16. “If you can’t measure it, and monitor it, you can’t manage it.”

  17. Dietary Monitoring and Modeling • Data Collected • Feed Composition and intake (inc. refusals) • Environmental conditions (temp, humidity) • Animal Production (milk, fat, prot., body condition, bodyweight) • Purchased feed costs

  18. Dietary Monitoring and Modeling • Rations Modeled • Using Cornell Net Carbohydrate and Protein System (CNCPS) model • Ration metrics generated

  19. P density P intake P excretions CP density N excretion NFC density Ration Forage content, % of ration DM Forage NDF intake, % of BW Purchased grain costs Several measures Dietary Monitoring and Modeling:Ration Metrics

  20. Dietary Monitoring and Modeling:Ration Metrics Benchmarks: • P intake • +/- 5 grams/d of requirement • Rumen Nitrogen Balance • <100 grams/day • Forage, % of total ration DM • > 60% • Forage NDF intake, % of BW • > 1.0% • Purchased Feed costs - ? Developing benchmarks

  21. PFM Summary Report

  22. The Delaware County Precision Feed Management Program:Components Farm Precision Feed Planning Integration Research & Development Education

  23. Education • Feed Industry Training • General feed management • CNCPS software training • Farmer Education • Formal classes • Written media • One on one

  24. Cornell Net Carbohydrate and Protein System Research and Development

  25. Precision Feed Management Impact

  26. PFM Impact to date: - Quantified • 20% of herds meet ration goals already • Reduced feed P Imports and manure P excretions avg. of 6.5 kg/cow/yr (25% & 30% respectively) • Reduced manure Nitrogen excretions an avg. of 23.4 kg/cow/yr • Reduced P accumulation avg. of 40% • Cut feed costs (as high as $128/cow/yr) • Increase milk production (as much as 3000 lbs per cow/yr)

  27. Other Areas of PFM Impact: • Not yet quantified: • Animal health (economic and pathogens) • Lactating cows • Transition cows (calf health) • Heifers • Soil Erosion • Crop rotations • Crop species • Crop systems

  28. Other Areas of PFM Impact • Adoption of advanced ration software (CNCPS/CPM Dairy) by 50% local feed industry for their everyday ration work.

  29. Managing Nutrients through Precision Feed Management Paul Cerosaletti Cornell University Cooperative Extension of Delaware County

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