机构地区: 阿尔伯塔大学
出 处: 《水产学报》 1988年第2期87-94,共8页
摘 要: 由多巴胺拮抗物PIM或排除剂RES组成的高效新型鱼类催产合剂能有效的诱导主要的淡水养殖鱼类促性腺激素分泌和产卵,其中青鱼催产率为80%,鲢鱼为84%,鳙鱼和草鱼为88%,长春鳊为94%,鲮鱼为96%。试验表明这种催产剂的主要优点是:催产效果高而稳定,可以完全取代鱼脑垂体;对当年第二次成熟和产卵的亲鱼同样有效;有利于保护亲鱼;节省劳力和成本。 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.