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Increase in milt production by hormonal treatment in the pejerrey fish Odontesthes bonariensis (Valenciennes 1835)

2005; Wiley; Volume: 36; Issue: 15 Linguagem: Inglês

10.1111/j.1365-2109.2005.01357.x

1365-2109

Leandro A. Miranda, M. Carolina Cassará, Gustavo M. Somoza,

Aquaculture Nutrition and Growth

Aquaculture ResearchVolume 36, Issue 15 p. 1473-1479 Increase in milt production by hormonal treatment in the pejerrey fish Odontesthes bonariensis (Valenciennes 1835) Leandro A Miranda, Leandro A Miranda Laboratorio de Ictiofisiología y Acuicultura, Instituto de Investigaciones Biotecnológicas/Instituto Tecnológico de Chascomús (CONICET-UNSAM), Camino de Circunvalación Laguna, Chascomús, Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorMaria C Cassará, Maria C Cassará Laboratorio de Ictiofisiología y Acuicultura, Instituto de Investigaciones Biotecnológicas/Instituto Tecnológico de Chascomús (CONICET-UNSAM), Camino de Circunvalación Laguna, Chascomús, Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorGustavo M Somoza, Gustavo M Somoza Laboratorio de Ictiofisiología y Acuicultura, Instituto de Investigaciones Biotecnológicas/Instituto Tecnológico de Chascomús (CONICET-UNSAM), Camino de Circunvalación Laguna, Chascomús, Provincia de Buenos Aires, ArgentinaSearch for more papers by this author Leandro A Miranda, Leandro A Miranda Laboratorio de Ictiofisiología y Acuicultura, Instituto de Investigaciones Biotecnológicas/Instituto Tecnológico de Chascomús (CONICET-UNSAM), Camino de Circunvalación Laguna, Chascomús, Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorMaria C Cassará, Maria C Cassará Laboratorio de Ictiofisiología y Acuicultura, Instituto de Investigaciones Biotecnológicas/Instituto Tecnológico de Chascomús (CONICET-UNSAM), Camino de Circunvalación Laguna, Chascomús, Provincia de Buenos Aires, ArgentinaSearch for more papers by this authorGustavo M Somoza, Gustavo M Somoza Laboratorio de Ictiofisiología y Acuicultura, Instituto de Investigaciones Biotecnológicas/Instituto Tecnológico de Chascomús (CONICET-UNSAM), Camino de Circunvalación Laguna, Chascomús, Provincia de Buenos Aires, ArgentinaSearch for more papers by this author First published: 26 October 2005 https://doi.org/10.1111/j.1365-2109.2005.01357.xCitations: 20 Correspondence: L A Miranda, Laboratorio de Ictiofisiología y Acuicultura, Instituto de Investigaciones Biotecnológicas/Instituto Tecnológico de Chascomús (CONICET-UNSAM), Camino de Circunvalación Laguna, Km 6. CC 164, (B7130IWA), Chascomús, Provincia de Buenos Aires, Argentina. E-mail: [email protected] Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract In spite of interest in the cultivation of the pejerrey fish Odontesthes bonariensis (Cuvier & Valenciennes 1835), there are few studies on subjects required to advance this activity. One of the problems is the synchronization of female and male maturation to provide eggs and sperm for larval production. The low volume of expressible milt, either in wild or culture fish, is a major problem. The aim of this work was to study the effectiveness of the administration of different hormones on sperm production in pejerrey. Milt production was enhanced by the injection of human chorionic gonadotropin (hCG) (16.7-fold increase, 625 IU kg−1), carp pituitary extracts (13.5-fold increase, 30 mg kg−1), salmon pituitary extracts (12.8-fold increase, 30 mg kg−1), salmon-type gonadotropin-releasing hormone analogue (GnRH) (16.7-fold increase, 10 μg kg−1) and mammalian-type GnRH analogue (10.8-fold increase, 20 μg kg−1). Sperm concentration, motility and the fertilization rate were not statistically different compared with control groups. It was also demonstrated that sperm could be obtained off-season. Taken together, hCG is recommended to stimulate pejerrey spermiation because it is effective in low doses is inexpensive and is widely available. References Berlinsky D.L., Wiliam K., Hodson R.G. & Sullivan C.V. (1997) Hormone induced spawning of summer flounder Paralicthys dentatus. 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Citing Literature Volume36, Issue15November 2005Pages 1473-1479 ReferencesRelatedInformation