Download Intro to Nutrition

INTRO TO NUTRITION
NUTRITION
• The study of how the body nutrients in feed to
sustain life and for productive purposes
• Nutrients: A substance in the diet that supports the
normal functions of the body
Why do we study nutrition?
NUTRITION = INPUT COSTS
• Makes up 45-75% of expenses depending on the
type of enterprise
• Health and well-being
• Physical abilities
• Susceptibility/ability to recover from disease
NUTRIENTS
• 2 types:
• Dietary Essential (Hint: you really, really need these)
• Dietary Nonessential
• Nutrient Classifications
• Water, carbohydrates, vitamins, minerals, proteins, and fats
WATER
• Most important Nutrient
• Needed in largest amounts of all nutrients
• 65%-85% of body weight at birth
• 45% to 60% of body weight at maturity
• 90%-95% of blood is water
WHY WATER MATTERS
• Transportation of other nutrients and waste
products
• Temperature regulation
• Maintains shape of cells
• Lubricates joints and organs in the body
Q &A
Where do animals get water?
What effects water consumption?
WATER REQUIREMENTS
•Swine= 2-5 gal/hd/day
•Sheep= 1-4 gal/hd/day
•Cattle= 8-16 gal/hd/day
•Horses= 10-14 gal/hd/day
WATER IN FEED
• Grains can range from 8% to 30% water
• Forages can range from 5% in a dry hay to
more than 90% water in lush young grass
METABOLIC WATER
• Water produced by the body during
chemical reactions
• 5-10% of total water intake
Q &A
How is water lost from the body?
WATER DEFICIENCIES
1. Reduced feed consumption
•
Reduces amount of feed eaten by 27%
•
Reduces feed efficiency by 33%
•
Reduces weight gain by 50%
2. Weight Loss
3. Water Intoxication
•
4-5 days without water animal will drink up to 50% of body weight in ½ hour
4. Death
All of these lead to a loss of what?___________________
IN YOUR NOTES:
DRAW AND LABEL AN “ANIMAL
WATER CYCLE”
INCLUDE: FACTORS EFFECTING INTAKE, FUNCTIONS
OF WATER, SOURCES OF WATER, AND
CONSEQUENCES OF DEFICIENCIES