RATION FORMULATION SPRING 2018 Activity Divide Paper into

Activity…… Divide Paper into 10 equal pieces • Label the following: - On Board

Transition from Feed Analysis to: What information do we need to obtain to put

Calculating Forage Dry Matter Intake: EXAMPLE Calculating Forage Dry Matter Intake: a. poor quality

Fat Corrected Milk EXAMPLE A: Animal milking 102 lbs B: Animal has 3. 8%

Milk Yield/Lact EXAMPLE A: Cow producing 82 lbs B: Cow producing 165 lbs Equation

Estimating Total Water Intake A: DMI – 56 lbs EXAMPLE B: Milk lbs –

Estimating DMI EXAMPLE a. b. c. d. 1357 lb dairy cow 91 lbs of

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RATION FORMULATION SPRING 2018

Activity…… Divide Paper into 10 equal pieces • Label the following: - On Board Intro Expect. Activity Trans. Tomorrow ANIMAL SCIENCE MANAGEMENT Finish

Transition from Feed Analysis to: What information do we need to obtain to put together a ration? Analysis Balancer Maximize Profit Intro Expect. Activity Least Cost Trans. Tomorrow ANIMAL SCIENCE MANAGEMENT Finish

Calculating Forage Dry Matter Intake: EXAMPLE Calculating Forage Dry Matter Intake: a. poor quality hay at 57% NDF b. Animal Weight of 1400 lbs YOUR TURN Equation: (Weight X. 009) / NDF = Forage DM Calculating Forage Dry Matter Intake: a. good quality hay at 38% NDF b. Animal Weight of 1320 lbs Equation: (Weight X. 009) / NDF = Forage DM ANIMAL SCIENCE MANAGEMENT

Fat Corrected Milk EXAMPLE A: Animal milking 102 lbs B: Animal has 3. 8% Fat Test Equation – (milk lbs X. 4) + (Milk lbs X Fat test) (15) YOUR TURN A: Animal milking 86 lbs B: Animal has 4. 2% Fat Test Equation – (milk lbs X. 4) + (Milk lbs X Fat test) (15) ANIMAL SCIENCE MANAGEMENT

Milk Yield/Lact EXAMPLE A: Cow producing 82 lbs B: Cow producing 165 lbs Equation lbs X 200 = milk yield per lact YOUR TURN A: Cow producing 97 lbs B: Cow producing 105 lbs Equation lbs X 200 = milk yield per lact ANIMAL SCIENCE MANAGEMENT

Estimating Total Water Intake A: DMI – 56 lbs EXAMPLE B: Milk lbs – 98 C: Grams of Sodium: 56 g D: Current temp is 83 degrees Equation: 4. 22 + (DMI X. 189) + (Milk X. 108) + (Sodium X. 0132) + (Degrees X. 176) A: DMI – 49 lbs YOUR TURN B: Milk lbs – 76 C: Grams of Sodium: 33 g D: Current temp is 42 degrees Equation: 4. 22 + (DMI X. 189) + (Milk X. 108) + (Sodium X. 0132) + (Degrees X. 176) ANIMAL SCIENCE MANAGEMENT

Estimating DMI EXAMPLE a. b. c. d. 1357 lb dairy cow 91 lbs of production (not fat corrected) 4. 2% fat test Equation: (. 018 X body weight) + (4% FCM x. 305) YOUR TURN a. b. c. d. 1266 lb dairy cow 83 lbs of production (not fat corrected) 4. 0% fat test Equation: (. 018 X body weight) + (4% FCM x. 305) ANIMAL SCIENCE MANAGEMENT