Notes
Slide Show
Outline
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Animal Nutrition
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What nutrients does an animal need to stay healthy?
  • Identify the need for nourishment.
  • List 6 essential nutrients.
  • Define metabolism.
  • Describe the 2 different digestive systems found in animals.
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Activity
  • Brainstorm similar needs for animals, plants, and people.


  • Do a lot of needs overlap???
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Need for Nourishment
  • body processes require the use of energy
  • obtained from ingested food or stored fat
  • animal must have food to store energy in fat cells
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Need for Nourishment
  • animals spend most of their time in search of food
  • maintenance ration must be met first
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Need for Nourishment
  • wild animals eat a variety of foods to obtain proper nutrients
  • agricultural animals depend on the producer to provide balanced a ration
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Nutrients
  • water
  • protein
  • carbohydrates
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Nutrients
  • fats or lipids
  • vitamins
  • minerals
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Metabolism
  • all the chemical and physical processes that take place in the body
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Metabolism
  • anabolism - metabolism that builds tissue
  • catabolism - metabolism that breaks down materials
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Water
  • most abundant compound in the world
  • animals must have frequent intakes of water to remain alive
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Water
  • provides basis for all of the fluid of the animals body
  • bloodstream requires liquid for circulation
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Water
  • digestion requires moisture for breakdown of nutrients and movement of feed
  • needed to produce milk
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Water
  • provides cells with pressure to allow them to hold their shape
  • helps body to maintain constant temperature
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Water
  • flushes the animal’s body of waste and toxic materials
  • a loss of 20% of body water will result in death
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Water
  • animals generally need about three pounds of water for every pound of solid feed they consume
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Protein
  • largest and most costly part of the ration
  • composed of amino acids
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Amino Acids
  • building blocks of life
  • tissue development
  • muscle production
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Protein
  • enzymes are composed of protein
  • protein can be used to supply energy
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Protein
  • some animals need more protein than others
    • young animals
    • lactating (milk producing) animals
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Protein
  • twenty three types of amino acids
    • ten essential
    • thirteen nonessential
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Protein
  • crude protein content
    • total amount of protein in a feed
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Protein
  • digestible protein
    • the protein in a feed that can be digested and used by the animal
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Protein
  • protein sources
  • animal
  • slaughterhouse by products
  • dried fish meal
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Protein
  • plant
  • superior to animal sources
  • cottonseed meal
  • soybean meal, linseed meal
  • peanut meal, corn meal
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Carbohydrates
  • main source of energy
  • compounds of carbon, hydrogen and oxygen
  • include sugars, starches and cellulose
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Carbohydrates
  • almost all come from plants
  • generally found in grain
    • wheat
    • oats
    • barley
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Carbohydrates
  • types of sugars
    • monosaccharides - simple sugars
    • glucose
    • fructose, galactose
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Carbohydrates
  • disaccharides - complex sugars
    • sucrose
    • lactose
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Fats
  • group of organic compounds known as lipids
  • found in plants and animals
  • provide and store energy
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Fats
  • essential fatty acids: necessary for production of some hormones and hormone like substances
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Fats
  • most important sources are the grains that contain oil
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Minerals
  • inorganic
    • have role in providing structural support for the animal
    • bones (calcium and phosphorous)
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Minerals
  • egg shells (calcium)
  • other essential needs provided by minerals
  • aid in construction of muscles, blood cells, internal organs and enzymes
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Minerals
  • usually added to feed in their chemical form
  • often fed free choice
    • salt block
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Vitamins
  • considered micronutrients
  • essential for the development  of normal body processes
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Vitamins
  • health
  • growth
  • production
  • reproduction
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Vitamins
  • provides animal with ability to fight stress, disease, and to maintain good health
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Digestion
  • nutrients are converted to a form that the cells can use
  • nutrients are transported by digestive system
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Digestion
  • gastrointestinal tract
  • organs that make up the digestive system
  • also referred to as the alimentary canal
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Monogastric system
  • has only one compartment to the stomach
  • process goes through the:
    • mouth
    • esophagus
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Monogastric system
    • stomach
    • small intestine: duodenum, jejunum, ileum
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Monogastric system
  • large intestine: cecum, colon, rectum
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Monogastric system
  • humans
  • dogs
  • cats
  • horses
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Ruminant system
  • multicompartment stomach
  • ruminant animals are often called “cud chewers”
  • no upper front teeth in ruminant mouth
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Ruminant system
  • no enzymes in the saliva
  • examples of ruminant animals:
    • cows, sheep, goats
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What nutrients does an animal need to stay healthy?
  • Identify the need for nourishment.
  • List 6 essential nutrients.
  • Define metabolism.
  • Describe the 2 different digestive systems found in animals.