Diets containing cyclopropenoid fatty acids (CPFA) were fed to
rainbow trout. At a level of 223 ppm (from Sterculia foetida oil),
these CPFA in six weeks reduced weight gain by as much as 50 percent
over the control fish on the same diet without CPFA. Compounds
containing the intact cyclopropene ring were recovered from the tissue
lipids of the trout at approximately two-thirds of the level fed. These
acids seemed to concentrate in the egg lipids of the adult female fish.
At 223 and 2233 ppm (from S. foetida oil) and 50 ppm (from food grade
cottonseed flour) the CPFA were demonstrated to alter lipid metabolism.
In general, the CPFA fed fish had higher stearic and palmitic
acid levels and lower oleic and palmitoleic acid levels in their tissue
lipids than did the controls. On diets containing corn oil or corn oil plus salmon oil, fish fed CPFA tended to deposit more long chain
unsaturated fatty acids than did their controls. When provided with
tristearin as the sole dietary lipid, the CPFA fed fish reduced the
level of unsaturation of their tissue lipids. / Graduation date: 1967
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/26797 |
| Date | 17 March 1967 |
| Creators | Combs, Caroll Marie |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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