Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2006.1486.14916 Pro9 NEt]-LHRHa and LHRHa + Pimozide on Plasma Sex Steroid Profiles in Adult Female Seabream (Sparus aurata)]]>CekSehriban GokceM. Ali8200698The present study examined changes in the concentrations of plasma testosterone (T), progesterone (P4) and estradiol-17ß (E2) to determine changes in serum hormone profiles during the functional female phases in Sparus aurata. The fish were treated with [D-Ala6 Pro9 NEt]- luteinizing hormone releasing hormone analogue (LHRHa) alone, LHRHa plus pimozide (PIM) and Physiological Saline (PS) alone to stimulate gonadal development and sexual maturation. All fish were sampled and plasma levels of oestradiol (E2) Testosterone (T) and progesterone (P4) were measured by radioimmuno assay. LHRHa treatment alone, or in combination with PIM, elevated serum E2 and T concentrations (p<0.05) at 6, 24, 48 h after treatments while plasma P4 concentrations were unaffected by the treatments (p>0.05). Vitellogenesis was also stimulated by a combined LHRHa and PIM treatment. Responses to treatment with LHRHa plus PIM were comparable to those treated with LHRHa alone (p>0.05), suggesting that dopamine receptor antagonist, pimozide may not inhibit dopamine secretion in S. aurata.]]>Arabaci, M.,2000Sparus aurata) and seabass (Dicentrarchus labrax) by long-acting hormones and their effects on egg quality.]]>2000Bancroft, J.D. and A. Stevens,1990Pages: 386Pages: 386Bromaga, N.R. and P.R.T. Cumaranatunga,19871987pp: 194Chang, C.F. and W.S Yueh,1990Acanthopagrus schlegeli.]]>91179196Cornish, D.A.,1998Oreochromis mossambicus.]]>24257263Crim, L.W., R.E. Peter and G. Van,19871987pp: 489-498pp: 489-498Eckstein, B., M. Abraham and Y. Zohar,1978Sparus aurata (Teleostei, Sparidae).]]>609397Firat, K., O. Saka and C. Suzer,2005Dicentrarchus labrax L., 1758) broodstock.]]>298387Garcia, A., A.M. Villaplana Garcia, M.P. Hernandez, E. Chaves Pozo and B. Agulleiro,2003Sparus aurata L. (Teleostei). An immunocytochemical study.]]>1347279Haddy, J. and N.W. Pankhurst,1998Acanthopagrus butchery (Sparidae).]]>49389397Haddy, J.A. and N.W. Pankhurst,2000Acanthopagrus butcheri is improved by treatment at capture.]]>191351366Joao, B., A. Condeca and V.M. Canario,1999in vitro conversion of androstenedione to testosterone, 11-ketotestosterone and estradiol-17β in Sparus aurata (Teleostei, Sparidae).]]>1165972Kadmon, G., Z. Yaron and H. Gordin,1984Sparus aurata (L).]]>53453453Kadmon, G., Z. Yaron and H. Gordin,1985Sparus aurata (L). under two photoperiod.]]>26609620Morehead, D.T., N.W Pankhurst and A.J. Ritar,1998Latris lineata (Latridae).]]>169315331Murthy, C.K., W.V. Zheng, L.C. Trudeau, S.J. Nahorniak, E. Rivier and R.E. Peter,1994In vivo actions of a gonadotropin-releasing hormone (GnRH) antagonist on Gonadotropin-II and growth harmone secretion in Goldfish, Carassius auratus.]]>96427437Pankhurst, N.W. and A.M. Conroy,1987Parapercis colias (Mugiloidae).]]>41526Pankhurst, N.W. and J.F. Carragher,1992Pagrus auratus (Sparidae) following treatment with human chorionic gonadotropin.]]>101337347Peter, R.E., Lin H.R. and G. Van Kraak,198874110Prat, F., S. Zanuy and M. Carillo,2001Dicentrarchus labrax L.]]>198325338Ross R. M.,1984Thalassoma duperrey.]]>244455461Sower, S.A., R.N. Iwamoto, W.W. Dickhoff and A. Gorbman,1984433546Tao, Y.X., H. R. Lin G.V.D. Kraak and R.E. Peter,1993Monopterus albus.]]>118131140Tekelliolu, N.,1998pp: 184pp: 184Van Der Kraak, G., H.M. Dye and E.M. Donaldson,1984Oncorhynchus kisutch).]]>553645Ventling, A.R. and N.W. Pankhurst,1995in vitro final oocytes maturation in the Nev Zealand snapper Pagrus auratus (Sparidae).]]>46467473Yaron, Z.,19951294973Zar, H.,1984pp: 718pp: 718Zohar, Y., G. Pagelson and M. Tosky,1986Sparus aurata at the Spawning Period.]]>1986pp: 119-125pp: 119-125Zohar, Y., M. Harel, S. Hassin and A. Tandler,1995Sparus aurata).]]>1995pp: 94-118pp: 94-118