Journal
AQUACULTURE
Volume 358, Issue -, Pages 213-215Publisher
ELSEVIER
DOI: 10.1016/j.aquaculture.2012.07.012
Keywords
Grayling; Sperm; Cryopreservation; Conservation; Aquaculture
Categories
Funding
- Slovenian-Hungarian Bilateral Science and Technology project [SI-03/2007]
- Szent Istvan University [TAMOP 4.2.2.B-10/1-2010-0011, TAMOP-4.2.1.B-11/2/KMR-2011-0003, GOP-1.1.1-09/1-2010-0141, KMOP-1.1.1-09/1-2009-0049]
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Sperm cryopreservation was successfully applied to the culture of the Adriatic grayling in the Soca river basin in Slovenia whose stocks have been affected by introgressive hybridization with non-native grayling from the Danubian drainage. Sperm was collected from wild males at the spawning sites and cryopreserved while fin clips of the same individuals were subjected to genetic analysis using molecular markers. Sperm samples from individuals having more than 95% of markers characteristic of the Adriatic genotype were thawed and used for fertilization of eggs from previously selected Adriatic grayling females. The hatched progeny is currently grown as a future broodstock or has been stocked into the wild. The present study presents the possibility of relatively short-term (2-6 weeks) storage of cryopreserved sperm as an alternative to long-term gene banking. (C) 2012 Elsevier B.V. All rights reserved.
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