Nutritional stages
Ms. Hoover
Maintenance
• No work
• Yielding no product
• Nutrients used to build and renew
tissues/organs
• 1/2 of feed used for maintenance
Growth
• Development of animal from birth to maturity
• Nutrients needed in addition to those for
growth.
• Nutrients important in development of young
animals
Reproduction
• From conception until birth of new animal
• Prevent over-feeding pregnant animals
• Underfeeding results in deficiencies
Production
• Market animals: for meat, milk, wool and
work
• Most costly portion
• Proper amount of feed with the correct
mixture
• Older and fatter - consume less feed and use
more for maintenance
Make a diagram!
•
•
•
•
•
•
•
•
•
•
Working
Milk
Net maintenance energy
Net energy
Growth/reproduction
Base metabolism (needs)
Physical activity
Temperature
Net production energy
Meat
Net E
Net
Maintenanc
eE
Net
Production E
Meat/Milk
Working
Growth/Repro
Base
Metabolism
(needs)
Temperature
Physical
activity