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Unit 4: Procedures in Feed Formulation

Unit 4: Procedures in Feed Formulation. Unit 4: Procedures in Feed Formulation. Unit 4 Objectives: Understand feeding standard tables for various livestock Describe and discuss methods of animal diet formulation

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Unit 4: Procedures in Feed Formulation

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  1. Unit 4: Procedures in Feed Formulation

  2. Unit 4: Procedures in Feed Formulation • Unit 4 Objectives: • Understand feeding standard tables for various livestock • Describe and discuss methods of animal diet formulation • Identify the purpose of a premix, how it can be formulated and included in a diet

  3. Unit 4: Procedures in Feed Formulation • Balancing Rations to Meet Daily Nutrient Requirements of Animals • Materials Needed • Nutrient requirement data • NRC • Extension/University research • Feed analysis data • Info may come from the same source

  4. Unit 4: Procedures in Feed Formulation • Procedural Outline • Consult any reference material needed • Identify and prepare a list of important nutrient requirements • Determine available feedstuffs • Prepare a listing of nutrient composition of available feeds • Balance the ration • Follow guidelines for DMI, CP, TDN, etc.

  5. Unit 4: Procedures in Feed Formulation • Check the ration for proper min/vit concentrations • Recheck the ration • Correct any deficiencies • Address any excesses • Consider palatability and physical feasibility • Think about economics • Calculate cost • Cost/t • Cost/h/d • Will there be any additions not added in the ration?

  6. Unit 4: Procedures in Feed Formulation • Simple Techniques in Ration Formulation • Can formulate simple rations on our own considering only one nutrient • Will use these methods for more complex rations • Using two feed sources • Formulate a 16% CP swine diet using corn 8.9% CP, and 36% supplement

  7. Unit 4: Procedures in Feed Formulation • Algebraic Equations • Example • Pearson Square • Precautions • Use w/ only two feed materials – either or both can be mixtures • Center number must be intermediate of the two left numbers to get a correct answer • Requirement must be expressed as a percent or proportion

  8. Unit 4: Procedures in Feed Formulation • Using Three or More Feed Sources • Ration – corn, SBM and tankage in a 3:1 mix • Formulate the mix of SBM & tankage • Use the Pearson Square • Using Fixed Ingredients • Prepare 1000# diet from corn, SBM, and fixed ingredients (10% of diet) • Final diet should be 14% CP • No protein in the fixed ingredients

  9. Unit 4: Procedures in Feed Formulation • Find % CP for center of square • Use Pearson Square to figure parts corn and SBM • Check your ration

  10. Unit 4: Procedures in Feed Formulation • Formulate a 2000 lb diet at 20% CP for Broilers

  11. Unit 4: Procedures in Feed Formulation • Substituting Ingredients • Computer Assisted Formulation • Various ration balancing programs are available • Can program in nutrient profiles, or use the feed library • Still prefer lab analysis on all forages • Program calculates nutrient requirements of the animal you are going to feed

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