Location: Warmwater Aquaculture Research Unit
Project Number: 6066-31320-001-00-D
Project Type: In-House Appropriated
Start Date: Dec 2, 2009
End Date: Dec 1, 2014
The overall objective of this project is to improve the profitability of channel catfish by improving farm-level production efficiency. This will be accomplished by addressing key production inefficiencies over a broad range of issues (nutrition, production system design, and product quality) affecting production in all post-hatchery production phases (fingerling production, foodfish production, and post-harvest). Over the next 5 years, we will accomplish the following objectives: Objective 1: Explore alternative feed ingredients to reduce production costs of catfish. Objective 2: Improve culture methods for fry and fingerling production. Objective 3: Develop new and improve existing production strategies for large catfish. Objective 4: Determine the relationship between pre-harvest, harvest, and post-harvest practices and product quality.
Catfish aquaculture was a profitable and rapidly growing industry in the southeastern United States prior to 2003. Since that time, profitability has declined due primarily to competition from imports and increased feed prices. Although these macroeconomic issues are difficult to address, new technologies can improve farm production efficiency and help restore profitability. This project addresses key production inefficiencies in fish nutrition, production system design, and product quality. Objective 1 will address the rising cost of catfish feed by finding suitable replacements for traditional feed ingredients that have recently increased dramatically in price. Objective 2 will evaluate the use of natural feeds and different stocking densities on growth and survival of catfish fry, with the goal of reducing feed costs and improving growth of fish from fry to fingerling stage. Objective 3 will evaluate ways to reduce feed-input costs by providing food-sized catfish with forage fish as a secondary source of food. A second subobjective proposes to alter pond design to overcome production limitations related to loading limitations of traditional earthen ponds. Objective 4 will address the large number of fish rejected for processing due to product-quality issues. Fish rejected for processing has become an important inefficiency for foodfish producers. The benefits of this project will be development of techniques to enhance economic performance, improve global competitiveness, and allow domestic aquaculture to reduce dependence on imports to meet the U.S. demand for seafood.