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10 Cards in this Set
- Front
- Back
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nutrition |
-science involving the interrelated steps by which an organism assimilates food and uses it for growth, tissue repair and replacement, or elaboration of products -multidisciplinary and interdisciplinary (many fields relate into the field of nutrition) |
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nutrient |
an element or compound in the diet that aids in the support of life processes -repro, growth, lactation, maintenance supports cellular needs for water, fuel, structural constituents (skin, muscle, bone, nerves, fat), metabolic regulation |
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six classes of nutrients |
1. carbohydrates 2. lipids 3. proteins 4. vitamin 5. minerals 6. water |
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carbohydrates |
-sugar, starch and fiber = energy -mainly plant derived |
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lipids |
-fats and oils = energy
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proteins |
-amino acids = growth and support -plant and animal feed sources |
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vitamins |
-required in minute quantities for specialized functions -fat soluble (stored) - A, D, E, K -water soluble (supplied) - B, C |
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minerals |
-support, regulation, and maintenance -macrominerals = Ca, P, Na, Cl, K, Mg, S -micro (trace) minerals = Cu, I, Fe, Mn, Se, Zn |
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water |
metabolism, transport, and temperature control -50-75% of mature animal body mass -90% of newborn animal body mass
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feeding standards |
-statements of quantitative descriptions of the amounts of nutrients needed by animals -use of such standards dates back to 1800's
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