1. RATION FORMULATION
SPRING 2018

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

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

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

5. Fat Corrected Milk EXAMPLE A: Animal milking 102 lbs YOUR TURN
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

6. Milk Yield/Lact EXAMPLE A: Cow producing 82 lbs YOUR TURN
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

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

8. Estimating DMI EXAMPLE 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
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