Introduction to Nutrition and Nutrients
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| Why is Nutrition Important | -feed is a major expense (60-80% of total costs)
-feed costs have increased over the past few years
-genetics of animals are changing
-environmental impact
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| Feeds | materials fed to livestock which contain life sustaining nutrients
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| Feeding | the process of consuming feed by animals or the process of providing feed to animals
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| Diet | the makeup of the feed given to an animal
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| Ration | amount of feed provided (often interchangable with diet)
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| Nutrition | the act or process of nourishing or being nourished
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| Nutrient | a nutritive substance or ingredient
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| 6 Nutrient Categories | -water
-protein
-carbohydrates
-lipids
-vitamins
-minerals
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| Lind | -1753
-published treatise on scurvy and citrus fruit
-british started including citrus on naval (limey)
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| Antoine Lavoisier | -late 1700s
-carbon dioxide in human respiration (metabolism)
-invented the first calorimeter to measure heat production by an animal
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| Megendie | -1816
-fed foods without nitrogen to dogs
-resulted in death after ~1 month
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| 3 Major Roles of Nutrients | -regulation of processes (signaling)
-structural components
-energy (stored in chemical bonds; used for maintenance, production, activity, etc.)
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| Goals of Animal Nutrition | -meet the needs of the animals for stated production goals
-maintain animal health
-minimize costs of production (may not be consistent with maximum efficiency)
-ingredients used must be appropriate for the animals for which the diets are developed
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| Nutrient Composition of Green Corn Plant | -water: 70%
-carbohydrate: 25%
-protein: 2.5%
-ash: 1.7%
-fat: 0.8%
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
ickbutt
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