Controlled reproduction of pikeperch (Sander lucioperca); First step to domestication process

Document Type : Research Paper

Authors

1 Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Guilan, Iran

2 Department of Marine Sciences, The Caspian Sea Basin Research Center, University of Guilan, Rasht, Guilan, Iran

3 Dr. Yousefpour Marine Fishes Restocking and Genetic Conservation Center, Siahkal, Guilan, Iran

Abstract

One of the most important stages of domestication in each species is to maintain the animal in a rearing condition up to reaching to maturity and reproduction. Therefore, this study was performed with the aim of reproducing the pikeperch (Sander lucioperca) grown in a captivity condition. For this purpose, two groups of fish including control group (without hormone injection) and hormone induction group (HCG injection at 200 IU/kg) were considered and each group consisted of two replicates and 5 fish in each tank. The results showed that the fish spawned after 74 to 90 hours, but the difference between the two groups in this regard was not significant. The latency time was determined in case of degree-hour in non-injected breeders to 1396.9 ± 157.2 and in injected breeders to 1261.5 ± 34.2 degree-hours (P = 0.356). The response rate of fish in non-injected breeders was 87.5 ± 17.7% and in injected breeders was 75 ± 0.0% (P = 0.423). The quality of nests did not show any significant difference between the two groups. Fertilization rate was 87.3 ± 3.5% in non-injected fish and 82.7 ± 5.4% in injected fish (P = 0.412). According to the obtained results, it can be concluded that due to the complete adaptation of farmed fish to the captive rearing condition, it can be possible to propagate pikeperch without hormonal induction while the desired temperature and suitable spawning ground are available.
.

Keywords

Journal of Fisheries
Volume 75, Issue 1 - Serial Number 1
February 2022
Pages 87-98

Files

Share

How to cite

Statistics