title: Simulation modeling of high-throughput cryopreservation of aquatic germplasm: a case study of blue catfish sperm processing.
abstract: Emerging commercial-level technology for aquatic sperm cryopreservation has not been modeled by computer simulation. Commercially available software (ARENA, Rockwell Automation, Inc. Milwaukee, WI) was applied to simulate high-throughput sperm cryopreservation of blue catfish (Ictalurus furcatus) based on existing processing capabilities. The goal was to develop a simulation model suitable for production planning and decision making. The objectives were to: 1) predict the maximum output for 8-hr workday; 2) analyze the bottlenecks within the process, and 3) estimate operational costs when run for daily maximum output. High-throughput cryopreservation was divided into six major steps modeled with time, resources and logic structures. The modeled production processed 18 fish and produced 1164 ± 33 (mean ± SD) 0.5-ml straws containing one billion cryopreserved sperm. Two such production lines could support all hybrid catfish production in the US and 15 such lines could support the entire channel catfish industry if it were to adopt artificial spawning techniques. Evaluations were made to improve efficiency, such as increasing scale, optimizing resources, and eliminating underutilized equipment. This model can serve as a template for other aquatic species and assist decision making in industrial application of aquatic germplasm in aquaculture, stock enhancement, conservation, and biomedical model fishes.
authors.affiliation: Aquaculture Research Station, Louisiana Agricultural Experiment Station, Louisiana State University Agriculture Center, Baton Rouge, LA 70803.
authors.forename: E
authors.initials: E
authors.lastname: Hu
authors.affiliation: Department of Mechanical and Industrial Engineering Louisiana State University, Baton Rouge, LA 70803.
authors.forename: T W
authors.initials: TW
authors.lastname: Liao
authors.affiliation: Aquaculture Research Station, Louisiana Agricultural Experiment Station, Louisiana State University Agriculture Center, Baton Rouge, LA 70803.
authors.forename: T R
authors.initials: TR
authors.lastname: Tiersch
keywords: blue catfish; high-throughput; process simulation; sperm cryopreservation