Lecture 1 8/26/11 E1 Word Scramble
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| Question | Answer |
| 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 |
| Feeds | materials fed to livestock which contain life sustaining nutrients |
| Feeding | the process of consuming feed by animals or the process of providing feed to animals |
| Diet | the makeup of the feed given to an animal |
| Ration | amount of feed provided (often interchangable with diet) |
| Nutrition | the act or process of nourishing or being nourished |
| Nutrient | a nutritive substance or ingredient |
| 6 Nutrient Categories | -water -protein -carbohydrates -lipids -vitamins -minerals |
| Lind | -1753 -published treatise on scurvy and citrus fruit -british started including citrus on naval (limey) |
| Antoine Lavoisier | -late 1700s -carbon dioxide in human respiration (metabolism) -invented the first calorimeter to measure heat production by an animal |
| Megendie | -1816 -fed foods without nitrogen to dogs -resulted in death after ~1 month |
| 3 Major Roles of Nutrients | -regulation of processes (signaling) -structural components -energy (stored in chemical bonds; used for maintenance, production, activity, etc.) |
| 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 |
| Nutrient Composition of Green Corn Plant | -water: 70% -carbohydrate: 25% -protein: 2.5% -ash: 1.7% -fat: 0.8% |
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ickbutt
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