The Israeli Journal of Aquaculture Bamidgeh 57(3), 2005, 207-212           
 
EFFECT OF SHORT-TERM PRESERVATION OF MIRROR CARP (CYPRINUS CARPIO) SEMEN ON MOTILITY, FERTILIZATION, AND HATCHING RATES
 

Yusuf Bozkurt*

Department of Aquaculture, Faculty of Fisheries, Mustafa Kemal University, 31040 Hatay, Turkey
 
Selcuk Secer
 
Department of Fisheries and Aquaculture, Faculty of Agriculture, Ankara University, 06110 Ankara, Turkey
 
(Received 10.3.05, Accepted 2.5.05)

Key words: cryopreservation, Cyprinus carpio, mirror carp, sperm
 
Abstract


Mirror carp (Cyprinus carpio) semen was collected by hand stripping for short-term preservation. Two groups of pooled semen were diluted with one of two extenders; a control group was undiluted. The three groups were stored at 4oC for 72 h. During preservation, spermatozoa motility (%) and duration of spermatozoa movement (s) were determined every 12 h. Following preservation, fertilization was carried out using the dry fertilization technique at 1 x 105 spermatozoa/egg. The highest fertilization rates were 213.60% in May and 16.672.08% in June, both significantly higher than in the control. The highest hatching rates, 69.6011.86% in May and 89.1310.75% in June, did not significantly differ from the control.

* Corresponding author. E-mail: yfbozkurt@mku.edu.tr

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