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August 29, 2013
Missouri—Video—Dr. David Brune’s Project
Dr. David Brune, a professor of agricultural systems management at Missouri University’s College of Agriculture, Food and Natural Resources, has developed a greenhouse production system at MU’s Bradford Research Center that can produce a fresh crop of shrimp every 120 days. Each greenhouse holds about one-twentieth of an acre of water and is stocked with Pacific white shrimp (Penaeus vannamei).
Brune’s system uses fast-growing algae and bacteria to control water quality. These microorganisms remove ammonia from the water, and in the case of algae, provide oxygen. Paddlewheels keep the water moving at a constant rate and provide additional oxygen.
“You can’t keep growing algae or bacteria in a closed system without providing an outlet for them,” Brune said. “Microbial biomass production is continually removed using brine shrimp, which are only 8 to 12 millimeters long. The brine shrimp consume or ‘harvest’ the algae and bacteria. Then we use the brine shrimp as food for our main product, the...shrimp, instead of just creating more waste.”
Brine shrimp can be used as a fish meal replacement to feed the shrimp, or harvested and converted into a liquid fuel. Additionally, waste from the brine shrimp can be converted to produce methane, which could be used as power for the greenhouse system. Other byproducts, such as concentrated nitrogen and phosphorus can be used as fertilizer. This creates a system that is environmentally friendly in a cost-effective way, Brune said.
While Brune has proven that shrimp can be grown locally, they do come at a greater cost than shrimp imported from other countries. “It costs around $3 a pound to produce the Pacific white shrimp we are growing, which is the wholesale price for frozen shrimp that is imported from Asia,” Brune said. “We know that we can grow shrimp in a sustainable manner and in an environmentally friendly way. However, if we can’t produce them in a cost effective manner, then we aren’t going to be successful.”
Brune says he is working to demonstrate the technical success of the system and to make this process affordable to farmers.
In a two-minute video on the project, Dr. Brune says. If I raise the equivalent of 25,000 pounds per acre of water, and I can get $4.00 a pound that’s $100,000 cash flow per acre of water every 120 days. ...We know that we can do this in an environmentally compatible way, in a way that is, in fact, zero discharge. ...The shrimp that come out of here will be of a higher quality. They will be a tastier shrimp from a fresh market and locally grown.”
Audio: To download the audio files on this story, Click Here.
Information: Christian Basi (email firstname.lastname@example.org, phone 1-573-882-4430), Associate Director, MU News Bureau, 329 Jesse Hall, Columbia, Missouri 65211, USA (phone: 1-573-882-6211, fax: 1-573-882-5489, email email@example.com, webpage http://munews.missouri.edu/index.php).
Information: David Brune, Ph.D., P.E., Professor of Bioprocess and Bioenergy Engineering, Agricultural Systems Management and State Extension Specialist, 229 Agricultural Engineering Building, Columbia, Missouri 65211, USA (phone 573-882-0689, fax 573-882-0596, email firstname.lastname@example.org, webpage http://www.missouri.edu).
Source: 1.University of Missouri News Bureau. Putting Worries About Shrimp Supply to Rest; Sustainable Seafood Production System Developed by MU Researcher. Jerett Rion. August 28, 2013. 2. Video: Show-Me Shrimp. University of Missouri News Bureau. Kent Faddis. August 28, 2013.
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