ADSC 3300 Lecture 2: ADSC 3300-Lecture 2&3
8 Mar 2017
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Document Summary
Nutrition: a function of living plants and animals consisting in the taking and metabolism of food material whereby tissue is built up and energy is made. Anabolism: using small molecules to build large molecules. Glucose to 6co2 and 6h2o (energy is released). Nutrient: any chemical (element or compound) in the diet which supports normal repro, growth, lactation, or maintenance of life processes. Essential nutrient: (2 criteria) any compound that you can"t make in the body or don"t have enough. Secondly, the compound or a derivative must have an essential biological function. Only species differences compared to pig include. Ruminant- water soluble produced in rumen, etc. On a dry matter basis, plants are 75% carbs (cho). Cho is a sugar, starch, fiber (type of carb found in plants). In animals, lipid (fat) component is low at birth. Macronutrients- carbs, proteins (amino acids), proteins, lipids, water, cho (carbs) Gut hormones- proteins produced in the gut that regulate gut activity.
