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Updated: Jul 14, 2026
A High-Throughput Method For Zebrafish Sperm Cryopreservation and In Vitro Fertilization
Published on: July 6, 2009
Development of a simplified and standardized protocol with potential for high-throughput for sperm cryopreservation
Huiping Yang1, Carrie Carmichael, Zoltan M Varga
1Aquaculture Research Station, Louisiana Agricultural Experiment Station, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.
Abstract:
Sperm cryopreservation offers potential for long-term storage of genetic resources. However, the current protocols for zebrafish Danio rerio are cumbersome and poorly reproducible. Our objective was to facilitate adoption of cryopreservation by streamlining methods from sperm collection through thawing and use. First, sperm activation was evaluated, and motility was completely inhibited when osmolality of the extender was >/=295-300mOsmol/kg. To evaluate cryoprotectant toxicity, sperm were incubated with dimethyl sulfoxide (DMSO), N,N-dimethyl acetamide (DMA), methanol, or glycerol at 5, 10, and 15% concentrations. Based on motility, DMSO, DMA, and methanol (
