The use of phospholipids in aquaculture feed
Time:2024-03-14The application of phospholipids in aquaculture feed is widespread, offering various crucial functions. As a fat emulsifier, phospholipids inhibit fat loss in feed, increase the absorption of fats by animals, promoting the growth of aquatic organisms, enhancing feed conversion rates, and survival rates. Additionally, the lubricating properties of phospholipids aid in reducing feed loss and equipment wear during extrusion, increasing pellet production yield and quality, and reducing energy consumption in the pelletization process.
The addition of phospholipids to feed acts as a lipid carrier, providing nutritional regulation, supplementation, and improved feed utilization efficiency. In aquatic feed, phospholipids improve the buoyancy and settling performance of feed in water, reducing feed waste and water pollution. Particularly in the cultivation of crustaceans such as shrimp and crabs, the high phosphorus utilization efficiency in phospholipids significantly promotes their growth.
Moreover, phospholipids positively impact the growth performance of aquatic organisms. The inclusion of different phospholipid levels in feed correlates with increased growth performance in aquatic animals. For example, the promotion of shrimp growth under the influence of soybean phospholipids accelerates growth rates, enhances feed efficiency, and increases survival rates, also promoting the digestion of protein in the feed.
Phospholipids contribute to improving the body fat composition of aquatic organisms, lowering crude fat content, increasing nutritional value, and enhancing palatability. The unsaturated fatty acids in phospholipids play a crucial role in fish growth, improving growth rates and overall quality.
Phospholipids also exhibit anti-stress effects. Their addition enhances the tolerance of aquatic organisms to environmental changes such as water temperature, salinity, and low dissolved oxygen, strengthening adaptability and reducing mortality rates.
In summary, the application of phospholipids in aquaculture feed not only improves feed efficiency and promotes the growth of aquatic organisms but also mitigates the environmental impact of feeds, offering significant economic and ecological benefits. However, specific usage methods and dosage should be comprehensively considered based on factors such as the type of cultivation, growth stage, and environmental conditions to ensure optimal results.