EVALUATION OF TRANSGENIC CAMELINA SATIVA OIL AND SCHIZOCHYTRIUM SP. OIL AS A SOURCE OF DIETARY LIPID FOR JUVENILE RAINBOW TROUT (ONCORHYNCHUS MYKISS).
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Two experimental feeding trials examined Genetically engineered Camelina sativa and high DHA Schizochytrium sp. oils as dietary lipid alternatives for rainbow trout. Fish fed high camelina oil diets (HCO) had no differences in DHA within muscle tissue of fish fed HCO compared to the fish oil control (FO) (p=0.000). Trout fillets from the HCO treatment were firmer in texture and had higher orange intensity compared to FO (p=0.001; p=0.012). In muscle, DHA was highest in trout fed the microbial oil (MO), and the microbial oil camelina blend (MO/CO) diets than trout fed the FO diet (p=0.000). Muscle EPA was highest in trout fed the FO diet than trout fed the MO and MO/CO diets (p=0.000). Dietary inclusion of transgenic camelina and high and low inclusion levels of Schizochytrium sp.(T-18) oil can be used as an effective dietary lipid alternative for juvenile rainbow trout.