Energy - Pet Food Flashcards
Nutrient
Any food constituent that helps support life
Essential Nutrient
Indispensable - the body cannot synthesize
Conditionally Essential Nutrient
“Required” during certain physiologic or pathogenic conditions
Nonessential Nutrient
“Dispensable” - the body can synthesize
Energy Density
kcal per unit of volume
Proximate Analysis
Most common analysis done for nutritional testing - includes crude fat, crude protein, moisture, crude fiber and ash
Crude Protein =
Crude Protein = Nitrogen x 6.25
Nitrogen free extract measures what nutrient content?
Carbohydrate content
Nitrogen Free Extract =
100% - H2O - CP - Fat - CF - Ash
Modified Atwater Formula measures
Energy density
Calorimetry
Measure of heat
Direct Calorimetry
Measurement of heat dissipation by physical methods
Indirect Calorimetry
Inference of heat production from quantitative measurement of chemical byproducts of metabolism
Resting Energy Requirement
Energy used by adult at rest in a thermoneutral environment - does not support activity, growth or reproduction.
Resting Energy Requirement =
70 (weight in kg)^0.75
OR
30 (weight in kg) + 70 ((Only if >2kg and
Daily Energy Requirement =
RER x Maintenance Factor
Maintenance DER of a dog =
DER = 1.0 x 1.8 x RER
DER of neutered adult dog =
DER = 1.6 x RER
DER of intact adult dog =
DER = 1.8 x RER
DER of obese prone adult dog =
DER = 1.4 x RER
Maintenance DER of a cat =
DER = (0.8 - 1.4) x RER
DER of neutered adult cat =
DER = 1.2 x RER
DER of intact adult cat =
DER = 1.4 x RER
DER of obese prone adult cat =
DER = 1.0 x RER
Average Nutrient Analysis is (more/less) accurate than Proximate Analysis
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