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Induction of ovulation in the P ikeperch ( S ander lucioperca L .) by ovarian lavage

Induction of ovulation in the P ikeperch ( S ander lucioperca L .) by ovarian lavage Introduction The pikeperch ( Sander lucioperca ) is a predatorial percid species farmed in Central European pond aquaculture in order to control the stocks of smaller cyprinids that would represent food competition for the cultured common carp. This fish species is a promising candidate for intensive aquaculture as well. The first, crucial step of the rearing technology is the propagation and production of larvae. The most common and traditional method of the propagation of pikeperch is the use of spawning nests. Stripping the eggs is just recently spreading among farmers. Several studies have been published on the hormonally induced spawning of this species (Zakęś and Szczepkowski, ; Żarski et al., ) which will facilitate the adoption of these methods into the hatchery practice. To avoid injuries related to injection of fish alternative hormone administration methods are investigated that could later be used for hatchery spawning of this species. The objective of this study was to investigate the possibility of ovarian lavage, a non‐invasive direct hormonal injection into the ovary of the pikeperch through a catheter to induce ovulation. Materials and methods Sexually mature pikeperch were maintained at the hatchery of Attalai Hal Kft. (Attala, Hungary). Females were distributed http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Ichthyology Wiley

Induction of ovulation in the P ikeperch ( S ander lucioperca L .) by ovarian lavage

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References (2)

Publisher
Wiley
Copyright
Copyright © 2012 Blackwell Verlag GmbH, Wiley‐Blackwell, Rotherstraße 21, 10245 Berlin, Germany
ISSN
0175-8659
eISSN
1439-0426
DOI
10.1111/jai.12067
Publisher site
See Article on Publisher Site

Abstract

Introduction The pikeperch ( Sander lucioperca ) is a predatorial percid species farmed in Central European pond aquaculture in order to control the stocks of smaller cyprinids that would represent food competition for the cultured common carp. This fish species is a promising candidate for intensive aquaculture as well. The first, crucial step of the rearing technology is the propagation and production of larvae. The most common and traditional method of the propagation of pikeperch is the use of spawning nests. Stripping the eggs is just recently spreading among farmers. Several studies have been published on the hormonally induced spawning of this species (Zakęś and Szczepkowski, ; Żarski et al., ) which will facilitate the adoption of these methods into the hatchery practice. To avoid injuries related to injection of fish alternative hormone administration methods are investigated that could later be used for hatchery spawning of this species. The objective of this study was to investigate the possibility of ovarian lavage, a non‐invasive direct hormonal injection into the ovary of the pikeperch through a catheter to induce ovulation. Materials and methods Sexually mature pikeperch were maintained at the hatchery of Attalai Hal Kft. (Attala, Hungary). Females were distributed

Journal

Journal of Applied IchthyologyWiley

Published: Dec 1, 2012

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