Terminology 7-9
This is an abbreviation that indicates the relative energy value of a feed to an animal.
What is TDN?
This is formerly referred to as a small calorie. It is the amount of energy needed to raise 1 gram of water 1 Degree Celsius.
What is Calorie (cal)?
The difference between nutrients consumed and the nutrients excreted in the feces is considered to be what procedure?
What is Apparent Digestibility?
An essential nutrient that does not contribute to TDN value?
What is Water?
When feed intake increases, what is it that decreases?
What is digestion decreases?
This term is used to define the potential for organisms to do work.
What is energy?
This is formerly referred to as a large Calorie and was designated to be spelled with a capital C. This is the amount of energy required to raise 1 kilogram of water 1 Degree Celsius.
What is Kilocalorie (kcal)?
This procedure evaluates not only nutrients absorbed and digested, but also evaluate intestinal mucosa and bacteria present in feces.
What is True Digestibility?
This feed component must be digestible to have a value in TDN.
What is Dry matter?
This term describes all energy utilized for basic body maintenance.
What is NEm?
This is the energy released when an organic substance is oxidized completely to CO2 and water.
This is formerly referred to as a Therm. It is equivalent to 1,000 kilocalories and 1,000,000 calories.
What is Megacalorie (Mcal)?
Amount of a nutrient in daily feed - Amount of that nutrient in daily feces = what?
What is Amount of nutrient digested daily?
This feed component is essential but contributes no energy to a feed. Therefore has no TDN value.
What is Mineral matter?
This item is available for maintaining body temperatures in cold environments.
What is heat increments?
This abbreviation is one of the least accurate methods to measure a feed's energy value. TDN is superior to this measurement.
What is DE (Digestible energy)?
This is the amount of energy in heat form to raise 1 Ib of water to 1 Degree Fahrenheit. It is rarely used in Animal nutrition.
What is British Thermal Unit (BTU)?
Coefficient of any nutrient = what?
What is (Amount of that nutrient digested daily/Amount of that nutrient eaten daily) x 100?
This feed component contributes a large amount of energy when present in feeds. This means it will contribute to TDN value. To calculate its contribution to TDN it must be multiplied by 2.25.
What is Fat in the digestible dry matter?
Crude fat provides what percentage of energy compared to a carbohydrate?
What is 2.25?
This abbreviation represents the more accurate method when measuring a feed's energy value compared to TDN and DE.
What is ME (Metabolizable energy)?
An instrument used for determining the gross energy content of a material. It utilizes an insulated water container equipped with a combustion bomb, thermometer, and other items.
What is Bomb caloriemeter?
% of digestible nutrient in a feed = what?
What is (% of that nutrient in the feed x Coefficient of digestibility of that nutrient)/ 100?
This is an important factor when evaluating a feed based on its current state. This term stands for when a feed is given in its relatively original state.
What is an as-fed basis?
When evaluating a feed, what consistent step must be taken to get an accurate reading?
What is consistently feeding one nutrient?