Determination of gross energy of feeds

Paulraj, R and Ponniah, A G (1982) Determination of gross energy of feeds. CMFRI Special Publication, 8. pp. 10-14.


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The amount of heat, measured in calories, that is released when a substance is completely oxidized in a bomb calorimeter containing 25 to 30 atmospheres of oxygen, is called the gross energy (GE) of the substance. A sample of the material to be tested is weighed into a combustion capsule. The combustion capsule is placed in an oxygen bomb containing 25 to 30 atmospheres of oxygen. The oxygen bomb is covered with 2000 g of water in an adiabatic calorimeter. After the bomb and calorimeter have been adjusted to the same temperature, the sample is Ignited with a fuse wire. The temperature rise is measured under adiabatic conditions. From the hydrothermal equivalent of the calorimeter the temperature rise minus some small corrections for fuse wire oxidation and acid production, the caloric content of the sample is calculated.

Item Type: Article
Uncontrolled Keywords: gross energy; feeds
Subjects: Biochemistry
Marine Fisheries > Feed
Divisions: CMFRI-Cochin > Physiology and Nutrition Pathology
Depositing User: Arun Surendran
Date Deposited: 04 Oct 2010 08:03
Last Modified: 09 Sep 2015 15:21

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