Abstract: Conjugated Linoleic Acid (CLA) is a mixture of structure and geometric isomers of C18:2 fatty acids. Currently, it has been widespread concerned for the special physiological functions. This review elucidated the significance of the studies in the effects of dietary CLA on the growth performance, body composition, lipid contents and fatty acid composition of fish. Sorting earlier literatures, researchers found that dietary CLA can affect the growth performance and body composition of fish while the differences between different fish species are significant. Earlier studies in a number of species show that dietary CLA may have effects on the growth rate of fish but the results are diverging. This difference is mainly because of the mixed amount and the isomer composition ratio of CLA. There are evidences demonstrated that the impacts of CLA on fishs growth were closely related to the isomers of CLA. Dietary CLA (cis-9, trans-11 and trans-10, cis-12 isomers) inclusion resulted in significant increases of the contents of Saturated Fatty Acids (SFA) and Polyunsaturated Fatty Acids (PUFA) (p<0.05) and decreased Monounsaturated Fatty Acid (MUFA) content (p<0.05) in both muscle and liver tissues.
Ling Gao and Huajia Shan, 2012. Effects of Dietary Conjugated Linoleic Acid on the Growth Performance of Fish: A Review. Journal of Animal and Veterinary Advances, 11: 4315-4323.