Animal Nutrition

Question 1

As plants mature…

Answer 1

1. protein (energy, vit/minerals) decrease
2. fiber/lignin increases

Question 2

As grasses develop…

Answer 2

digestibility and % crude protein slowly decrease while dry matter and % stems increase

Question 3

Animal Requirements for Maintenance

Answer 3

Basal Metabolism
Minimum Movement
Foraging

*depends on age (young req more than old), size (larger animal lower metabolic rate), domestic/native (wildlife have lower basal and can vary with season)

Question 4

Animal Requirements ABOVE maintenance

Answer 4

Activity Level: standing 15% increase from lying down, range animals 40-46% increase from stalled animals

Environmental Conditions: cold requires more energy, hot requires more water

Growth: energy increase 10-15% (young and gestating females)

Lactation: 25-40% increase energy

Reproduction: last trimester increase 10-15%

Question 5

True/False: in spring and winter forage supply is less than animal demand?

Answer 5

True.