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Animal Science 233 Applied Animal Nutrition

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Does not imply nutritionally balanced. Balanced Diet/Ration: nutritionally adequate mixture that meets animal nutrient requirements ... – PowerPoint PPT presentation

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Title: Animal Science 233 Applied Animal Nutrition


1
Animal Science 233Applied Animal Nutrition
  • Dr. Michelle Tjardes
  • 134 NPB
  • 688-4139
  • michelle_tjardes_at_sdstate.edu

2
Introduction to Dr. Tjardes
3
Introduction to Dr. Tjardes
4
Introduction to Dr. Tjardes
M.S. in Monogastric Nutrition
B.S. in Animal Science
U of I
SDSU
Ph.D. in Monogastric Nutrition
Assistant Professor
5
Introduction to Dr. Tjardes
6
Introduction
  • Review of the Syllabus

7
Introduction
  • On the index card please write the following
    information
  • Name
  • Major
  • E-mail address (print clearly)
  • Species of Interest
  • Future Career Goals
  • Why are you taking this class?
  • Because it is required
  • Other (Please Specify)

8
What is Nutrition?
  • And why is it important

9
Introduction
  • NUTRITION
  • The series of processes by which an animal takes
    in and assimilates feed components for promoting
    growth, milk, or fiber production, and replacing
    worn or damaged tissue

10
Introduction
NUTRITION
Study of
NUTRIETS
That come from
FOOD/FEED
11
Introduction
  • Some definitions to think about
  • Food/Feed edible material that nourishes
  • Foodstuff/Feedstuff material used as food/feed
  • Diet/Ration mixture of food/feedstuffs used to
    supply nourishment to the animal
  • Does not imply nutritionally balanced
  • Balanced Diet/Ration nutritionally adequate
    mixture that meets animal nutrient requirements

12
If you know nutrition you know
  • Nutrient
  • Function, Occurrence, Interactions
  • Animals
  • Behavior, Management, Physiology
  • Chemistry and Biochemistry
  • Crop and Soil Science
  • Endocrinology
  • Bacteriology
  • Genetics
  • Disease

13
Nutrition
  • Represents 60-80 of the cost of livestock
    production
  • Large amounts of nutrients required to simply
    maintain weight, much less increase production or
    performance
  • Insufficient nutrient intake results in decreased
    performance and at starvation levels, possible
    death
  • Excessive nutrient consumption results in
    inefficient fat deposition

14
Nutrition
  • Animals have no specific requirement for a
    particular feedstuff
  • Actual feeds consumed are much less important
    than the quantity and assortment of nutrients
    supplied by the feeds
  • Feeds are merely carriers of nutrients and
    potential energy
  • No feed has been found to be nutritionally
    complete

15
What are Nutrients?
16
Nutrients
  • Definition Feed component that aids in the
    support of animal life
  • Dietary Essential Nutrients
  • Nutrients that must be included in the diet to
    support life and productivity
  • Some not synthesized
  • Some not synthesized in adequate quantities
  • Dietary Non-Essential Nutrients
  • Nutrients synthesized by animals in adequate
    quantities provided that appropriate precursors
    are available

17
(No Transcript)
18
Animal Response to Essential Nutrients
Toxicity
Deficiency
19
Animal Response to Non-Essential Nutrients
Potential Toxicity
20
Nutrients
  • Water
  • Carbohydrates
  • Lipids
  • Protein
  • Minerals
  • Vitamins

21
Sources of Nutrients
  • Pasture, hay, forages
  • Local grains
  • Water tank
  • Synthetic vitamins
  • Minerals
  • Synthetic amino acids
  • Feed additives
  • Imported grains/by-products
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