VPP 322: Aquatic Animal Diseases, Health Care and Management (1+1)

LIPID TOXICITY SIGNS IN FISHES

• It has been found that the dietary excess of Essential Fatty Acids (EFA) may exert a negative effect on fish growth and feed efficiency.  Cyclopropenoic acid is a toxic non-essential fatty acid found in the lipid fraction of cottonseed products. Cyclopropenoic acid has been shown to reduce growth rate in rainbow trout and to act as a potent synergist for the carcinogenity of aflatoxins. Other pathologies observed with trout include extreme liver damage (liver is pale in colour) with increased glycogen deposition and decreased protein content and a decrease in activity of several key enzymes.