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9 Cards in this Set
- Front
- Back
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What is the "destinies" of digested food?
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Metabolic loss
Productive use Urine/feces |
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Do all nutrients take the same length of time to go into clinical deficit after an animal stops eating it? Why?
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No. Because some nutrients are stored in large reserves in the body.
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Define "requirement" with respect to nutrients.
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The minimal amount of a nutrient needed to maximize/optimize production.
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What are the two ways in which you can determine a nutrient's requirement?
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Emprical approach
Factorial approach |
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What does the empirical approach to determining nutrient requirements examine?
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An animal's response to increasing amounts of a nutrient, looking for the point where the rate of increase in response is reduced. (the broken stick model)
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What is important to consider when using the empirical approach?
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The sensitivity of the chosen/measured response to the nutrient.
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Characterize the factorial approach to determining a nutrient's requirement.
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Sum all the components/losses (maintenance, growth, pregnancy, lactation, work, etc)
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What sort of things can modify a nutrient's requirement?
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Age, breed, sex, health, etc.
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Does the NRC take into account possible modifiers of a nutrient's requirement?
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No. It lists the bare minimum needed for ideal conditions.
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