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《Journal of Fisheries of China》 1988-02
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INDUCTION OF GONADTROPHIN SECRETION AND OVULATION OF CULTURED FISHES BY USING LHRH-A AND DOPAMINE ANTAGONIST PIMOZIDE(PIM)OR LHRH-A AND CATECHOLAMINE DEPLETOR RESERPINE(RES)

Lin Haoran;Liang Jianyong;Peng Chun;Zhang Meili;Zhang Suming;Chen Chao Department of Biology, Zhongshan University, China Glen Van Der Kraak;Richard E. Peter Department of Zoology, University of Alberta, Canada  
The effect of LHRH-A (des-Gly~(10), D-Ala~6 LHRH-ethylamide) incombination with dopamine antagonist PIM or catecholamine depletor RES on gonado-trophin secretion and ovulation of the cultured fishes were investigated. Injection of themixture of LIIRH-A and PIM or LHRH-A and RES is highly effective in stimulatinggonadotrophin secretion and inducing ovulation or spawning of freshwater culturedfishes. The rates of spawning in our experiment were: black carp (Mylopharyngodonpiceus) 80%; silver carp (Hypophthalmichthys molitrix) 84%; bighead carp (Aristi-chthys nobilis) and grass carp (Ctenopharyngodon idellus) 88%; bream (Parabramispekinensis) 94%; and mud carp (Cirrhinus molitorella) 96%. The advantages of theseovulatory agents are high rate of ovulation, complete replacement of carp pituitary;beneficial to the protection of brooders as well as labour saving and low cost.
【Fund】: 中国科学院科学基金;; 加拿大国际发展研究中心(IDRC)资助
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