Animal Nutrition
description
Transcript of Animal Nutrition
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Animal Nutrition • Nutrients• Carbohydrates• Fats• Proteins• Vitamins C and D• Calcium• Iron• Fiber• Ingestion• Egestion
• Minerals (Salts, Calcium and Iron)
• Balanced Diet• Starvation• Metabolism• Digestion• Absorption• Assimilation• Malnutrition• Villi
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Vitamins and Minerals
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Nutrition
• Taking in nutrients which are organic substances and mineral ions, containing raw materials or energy for growth and tissue repair, absorbing and assimilating them.
• http://www.youtube.com/watch?v=s06XzaKqELk
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Balanced Diet
• A well-balanced diet provides enough energy and nutrition for optimal growth and development.– New York Times
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Malnutrition
• Malnutrition is the condition that occurs when your body does not get enough nutrients.– Starvation (not enough nutrients)– Coronary Heart disease (Too much fats)– Constipation (not enough fiber)
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Human Digestive System
• Digestion is the breakdown of nutrients to a level that can be used by cells of the body.
• Structures– GI tract (mouth, pharynx, esophagus, stomach,
small intestine, large intestine)– Accessory (teeth, tongue, salivary glands, liver, gall
bladder, pancreas)
BioEd Online
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Human Digestive System Diagram
Villi
Mouth
Liver
Pharynx
StomachLarge Intestine
Small Intestine
Esophagus
BioEd Online
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Mechanical and Chemical Digestion
• Mechanical– Chewing
• Teeth – Peristalsis
• http://www.youtube.com/watch?v=rJS-Kh5wCQU
• Chemical– Alimentary Canal
• http://www.youtube.com/watch?v=ZeUlh9Cou38– (only watch until you
hear what an alimentary canal is)
– Enzymes• Amylase• Protease• Lipase
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Teeth
• Incisors – cutting
• Canine – tearing
• Premolars and Molars- Grinding
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Amylase
• In human saliva
• Breaks down starches into sugars.
• Located in your mouth.
Saliva
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Protease
• Breaks down Protein– (get it PROtease -> PROtein)
• Is in your pancreas.
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Lipase
• Breaks down fat• Found in your stomach
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Absorption
• The movement of digested food molecules through the wall of the intestine into the blood.
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Assimilation
• Movement of digested food molecules into the cells of the body where they are used becoming part of the cells.
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Ingestion
• The process of taking in food
Egestion• The removal of undigested food.