Growing Marine Shrimp in a Bio Floc System
Kentucky Biofloc Production, United States
Bio-floc Systems,Â video Chek onÂ Youtube.com
This 12-minute video was shot during a harvest in the indoor marine shrimp production system atÂ Kentucky State Universityâ€™s Aquaculture Research Center. Â In it Dr. Andrew Ray describes some of the benefits and concepts behind biofloc-based aquaculture, including comments on how bioflocs recycle and clean the water and become feed for the shrimp, resulting in very low feed conversion ratios. Â Ray says, â€œWe put 1.3 pounds of feed in and we get 1 pound of shrimp out,â€ adding that a small indoor tank can produce about as much as a large outdoor pond.Â In his system, he is getting about two grams of growth a week.Â He purchases postlarvae Â (PL 8s to 10s) from a shrimp hatchery in Florida and stocks them in a nursery tank at high densities for about 30 days.Â After the nursery phase, heâ€™s stocks his production tanks at 250 juveniles per square meter, but plans to increase that to 350 per square meter in his next production run, and if thatâ€™s successful, he plans to try even higher stocking densities.Â The growout cycle from a one-gram juvenile to a 26-gram animal takes about 95 days.Â Thatâ€™s about 20, fresh, whole shrimp per pound.Â Ray plans to distribute his most recent shrimp harvest to a variety of outlets to determine what people are willing to pay for them.Â The system allows shrimp to be farmed in practically any building.
Information:Â Andrew J. Ray, Ph.D., Assistant Professor, Kentucky State University, Aquaculture Research Center, 103 Athletic Road, Frankfort, Kentucky 40601 USA (firstname.lastname@example.org, webpageÂ http://kysu.edu).