Method of fish farming
AssigneeAir Products and Chemicals, Inc.
InventorsFuad Aboodi Shabi, Richard Loxley Hibberd
Life of this patent
Estimating the term…
Abstract
Fish farming method primarily for growing fish such as trout wherein the rate of growth of fish can be accelerated by maintaining the dissolved oxygen (D/O) level throughout the entire fish farming water above saturation with respect to ambient air and, preferably, the D/O level is maintained between 150% and 250% saturation for the fish farming water and between 120% and 150% saturation for self-cleaning pools. The invention contemplates obtaining the D/O level by contacting the fish farming water with a gas comprising at least 25% by volume oxygen, balance, if any, consisting essentially of nitrogen. The method of the invention can be used for culturing of mollusks and crustacea.
Claims7
A method of accelerating the rate of growth of aquatic life such as fish, mollusks and crustacea comprising the steps of:
- confining the aquatic life in a body of water wherein the level and oxygen content of the water can be controlled;
- introducing a gas containing at least 25% by volume oxygen, balance nitrogen or other gas not harmful to aquatic life below the surface of said body of water allowing said gas to disperse through said body of water;
- and
- maintaining the dissolved oxygen level throughout said entire body of water at least 120% above saturation with respect to ambient air, whereby said aquatic life exhibits a faster rate of growth than in a conventional artificially oxygenated body of water.
Dependencies are inferred from the claim text.