Effect of diets supplemented with CLA-enriched soybean oil, standard soybean oil, or marine fish oil on growth, health, feed conversions, survival, body composition and shelf life of Channel catfish;
Rebecca Lochmann ( University of Arkansas) ($21476). The Project Manager's email is email@example.com.
Key Words: Conjugated Linoleic Acid, Soybean Oil - Aquaculture, Soybean Oil - Utilization
The goal of this project is to determine whether CLA-enriched soybean oil can improve the fatty acid composition of farmed channel catfish for human health relative to diets with traditional soybean oil or fish oil, while maintaining or improving catfish growth, health, and product quality. The competiveness of the U.S. channel catfish production could be strengthened if farmers could differentiate their products and claim health benefits from eating catfish containing n-3 fatty acids. Dr. Andrew Proctor has developed soybean oil that is rich in conjugated linoleic acids (CLA). These lipids provide many of the same protective benefits as marine fish oils, but they are sustainably-produced plant oils that could be used to enhance both fish health and the health value of farmed fish for humans. Furthermore, CLA-enriched soybean oil would be a good candidate for organic production of catfish, which is a lucrative niche market. The project’s specific objectives are to: • Determine growth, survival ,and feed conversion of channel catfish fed diets differing only in lipid composition (6% standard soybean oil, CLA-enriched soybean oil, or menhaden fish oil) for 12 weeks; • Measure hematocrit, and non-specific immune responses (alterative complement activity, lysozyme activity) of fish from the feeding trial to assess health; • Determine body composition and fatty acid composition of the fillets; and • Measure quality characteristics filets stored frozen for I month.
This project is funded by Arkansas Soybean Promotion Board