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Title: GMT VS. MIXED-SEX NILE TILAPIA PRODUCTION IN A GREENHOUSE RECIRCULATING SYSTEM

Author
item PERSCHBACHER, PETER - UNIV AR AT PINE BLUFF
item Pfeiffer, Tim
item WHITE, JEFFERY - UNIV AR AT PINE BLUFF
item JALALUDDIN, MOHAMMED - UNIV AR AT PINE BLUFF

Submitted to: Aquaculture America Conference
Publication Type: Proceedings
Publication Acceptance Date: 8/20/2002
Publication Date: 1/20/2003
Citation: PERSCHBACHER, P., PFEIFFER, T.J., WHITE, J., JALALUDDIN, M. GMT VS. MIXED-SEX NILE TILAPIA PRODUCTION IN A GREENHOUSE RECIRCULATING SYSTEM. SMALL-SCALE AQUACULTURE:PROCEEDINGS OF THE SPECIAL SESSION OF AQUACULTURE AMERICA.2002.P.20-21.

Interpretive Summary:

Technical Abstract: The U.S. import of Nile tilapia is many times higher than domestic production. A promising strain of Nile tilapia for domestic production is the genetically male tilapia (GMT) because of its enhanced growth characteristics and the preponderance of all males limiting over abundance by uncontrolled spawning. The growth of GMT tilapia was compared with that of a mixed-sex strain in a recirculating aquaculture system. Six tanks were stocked with a hundred 38-g fish, three tanks with GMT and three tanks with mixed-sex strain. All fish were fed a 32% floating pellet diet for 103 days. Daily feed rates of 2.0, 2.5, 3.0, and 4.0% of body weight were evaluated during the experimental growth period. The GMT fish grew best under all rations except the 2.5% BW and also had a better food conversion ration . The resulting combination of increased growth and food conversion provides an advantage for using GMT fish for a small-scale aquaculture system.