Induced spawning in bream (Abramis brama L.) using pellets containing GnRH

D. Kucharczyk, R. Kujawa, A. Mamcarz, K. Targońska-Dietrich, E. Wyszomirska, J. Glogowski, I. Babiak and T. Szabó
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D. Kucharczyk: Department of Lake and River Fisheries, Department of Animal Biochemistry, Warmia and Mazury University in Olsztyn, Olsztyn-Kortowo, Poland
R. Kujawa: Department of Lake and River Fisheries, Department of Animal Biochemistry, Warmia and Mazury University in Olsztyn, Olsztyn-Kortowo, Poland
A. Mamcarz: Department of Lake and River Fisheries, Department of Animal Biochemistry, Warmia and Mazury University in Olsztyn, Olsztyn-Kortowo, Poland
K. Targońska-Dietrich: Department of Lake and River Fisheries, Department of Animal Biochemistry, Warmia and Mazury University in Olsztyn, Olsztyn-Kortowo, Poland
E. Wyszomirska: Institute of Public Health, Warsaw, Poland
J. Glogowski: Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Olsztyn, Poland
I. Babiak: Department of Lake and River Fisheries, Department of Animal Biochemistry, Warmia and Mazury University in Olsztyn, Olsztyn-Kortowo, Poland
T. Szabó: Institute of Animal Husbandry, Gödöllö University of Agricultural Sciences, Gödöllö, Hungary

Czech Journal of Animal Science, 2005, vol. 50, issue 3, 89-95

Abstract: Wild spawners of common bream, Abramis brama, were caught in the Kortowskie Lake (north Poland) and transported to a hatchery for artificial spawning. Fish were hormonally induced using GnRH analogue combined with metoclopramide (ovopel). The results of bream reproduction in captivity were compared with fish treated with the combination of hCG and CPE and with control group injected saline. Males from treated groups produced significantly more milt (over 4.3 ml/kg vs. 2.1) of better qualities: spermatozoon concentration (over 9.3 × 109 vs. 6.8) and motility (over 85% vs. 62). Females from the control group did not spawn whereas those from hormonally induced groups ovulated: 62% after CPE treatment and 100% after GnRHa treatment. Generally, the fish after ovopel stimulation showed the best hatchery parameters.

Keywords: controlled reproduction; spermiation; ovulation; incubation process (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:50:y:2005:i:3:id:4000-cjas

DOI: 10.17221/4000-CJAS

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