Transcript Animal Nutrition and Feeds - Louisiana Tech University

Katy Hoag
Cal Poly AgEd410
 Nutrition
is the science that deals with the
utilization of food and the processes which
transform food into body tissues and energy.

Animals need to
obtain and utilize
feed stuffs to
convert into
products such as
milk, meat, fiber and
work.
Digestible Nutrient

Portion of a nutrient
which may be broken
down (digested) and
absorbed for use in the
body.
Protein
Vitamins
Carbohydrates
Water
Fats
Air
Minerals
 Needed
throughout life for growth and
repair.
 Help to form muscles, internal organs, skin,
hair, wool, feathers, hoofs and horns.
 Contain carbon, hydrogen, oxygen and
nitrogen.
Examples of Protein:
 Meat
and Bone Meal
 Fish Meal
 Soybean Meal
 Cottonseed meal
 Dried skim milk
 Amino Acids
Carbohydrates:
 furnish
energy.
 are the largest part of food supply, usually
the fiberous part of the diet.
 include sugars, starch, and cellulose.
Furnish a concentrated source of energy, up to
2.25 times as much as carbohydrates.
 Form cholesterol, steroids, and other body
compounds.
 Affect the condition of the skin and hair.
 Are made of carbon, oxygen and hydrogen.
 Also provide energy reserves, protection of vital
organs, and insulation of the body

 Primarily
in bones and teeth
 Important in blood for carriage of oxygen
 Regulates heartbeat with Calcium, Sodium, and
Potassium.
Vitamins
 Only
needed in small amounts
 Provide defense against disease
 Promote growth and reproduction
 Contribute to overall health
Water

Water accounts for
70% or more of the
composition of most
plants and animals.
Slice 4
3
0%
Other
30%
Water
70%
Feed Classification
 Roughages
 Concentrates
 Supplements

High in fiber,
relatively low in
digestible
nutrients.
 Alfalfa
 Clover
 Soybeans
 Oat
Hay
 Corn Silage

Feeds that are low in
fiber and relatively
high in digestible
nutrients.
 Corn
 Cottonseed
 Barley
 Oats
 Sorghum

These are the “extras”
that supply some
necessary nutrient.
Minerals: salt, copper,
iodine, iron,
manganese, selenium,
and zinc are examples.
 Vitamins: A and D are
most important to
ruminant animals.

Review…
•What is nutrition?
•The utilization of food to be converted into meat, milk, eggs,
fiber and work
•What are the 6 nutrients needed?
•Protein, Carbohydrates, Fats, Minerals, Vitamins and Water.
•What are the 3 classifications of feed?
•Roughages, Concentrates and Supplements.