Induced reproduction of pikeperch (Sander lucioperca) using pituitary extract, hCG and LHRHa2
Subject Areas : New Technologies in Aquaculture Development
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Keywords: Keywords: Reproduction, Hormonthrapy, Wild and domesticated broods, Pikeperch,
Abstract :
Abstract[1]This study was carried out with the aim of induction of pikeperch (Sander lucioperca) using various hormones. For this reason, fish were injected under four hormonal treatments, so that each group of four broods were injected in two doses with pituitary hormone extract (1.5 and 4.5 mg/kg), LHRHa2 (3.5 and 10 µg/kg), hCG (150 and 500 IU/kg), and saline (control). The results showed that all male and wild females responded to pituitary extract and LHRHa2, while in wild female which injected with hCG and farmed females which injected with hCG and pituitary extract, 75 percent responded to hormone therapy and no farmed fish responded to LHRHa2. According to reproductive parameters with the parameters including the number of eggs and working fecundity, no significant difference was observed in different treatments. Considering the obtained results from this study it seems that pituitary extract and hCG have a high performance and was recommend induction of artificial reproduction in Pikeperch.
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