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Publication |
Publisher: U.S. Department of Energy
Creation date: June 1, 1986
The Abernathy Salmon Culture Technology Center (A.S.C.T,C.) and the Department of Microbiology at Oregon State University, with funding from the Bonneville Power Administration, are presently conducting a study on the effects of vitamin nutrition on immunity and disease resistance in chinook salmon (Oncorhynchus tshawytscha). It is the long range goal of this project to define the dietary levels of pyridoxine, folic acid, pantothenic acid, riboflavin, ascorbic acid and vitamin E required to assure maximum resistance to disease. In the second year of this study, we have completed two preliminary range-finding studies on the vitamins, pyridoxine and folic acid. These studies allowed us to focus in on the concentration of these vitamins which would exert the greatest effects in a practical ration. Upon the resolution of these concentrations, we chose an appropriate vitamin concentration range for both vitamins within a practical ration (Abernathy diet) and a semi-purified ration (modified Oregon Test Diet). This would then enable us to determine what concentration of vitamin would be required to gain some beneficial effects in a practical feed, and to determine the absolute requirements for immunological sufficiency. Results demonstrate that no significant differences in the specific growth rate or gross feed efficiency occurs, regardless of the concentration of either vitamin in the diets. This observation was made for both the preliminary range-finding trials as well as the formal diet trials.
Key Words: DOE • Finfish Disease • Vitamin Treatments • Salmon
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