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首页> 外文期刊>Croatian Journal of Fisheries >EFFECT OF DIFFERENT DOSES OF SYNTHETIC HORMONE LHRH-A2 ON SERUM SEX HORMONES, OVULATION PERCENT AND EGG HATCHING RATES OF PERSIAN STURGEON Acipenser persicus
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EFFECT OF DIFFERENT DOSES OF SYNTHETIC HORMONE LHRH-A2 ON SERUM SEX HORMONES, OVULATION PERCENT AND EGG HATCHING RATES OF PERSIAN STURGEON Acipenser persicus

机译：合成激素LHRH-A2的不同剂量对P雌ST受体A血清性激素，排卵率和卵孵化率的影响

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Acipenser persicus is one of the economically valuable fishes in the Caspian Sea. Due to the economically and culturally importance of sturgeons in the world, understanding of sturgeon reproduction is necessary for successful management of their populations in aquaculture and nature. To improve the culture methods and to facilitate captive breeding programs to support restocking, it is necessary to understand the steroid hormones changes during artificial reproduction. The administration of sturgeon luteinizing hormone- releasing hormone analogue (LHRH-A2) induces changes in serum sex steroid levels. To study the effects of different doses of LHRH-A2 hormone on induction of final maturation and ovulation of Persian sturgeon, 18 maturating females and 18 maturating males were used. All brooders were injected with LHRH-A2 in dosages of 4, 6 and 8 μg kg-1. In this study LHRH-A2 successfully induced final maturation and ovulation in females, and highest percentage of ovulated females was observed in the groups treated with dose of 4 μg kg-1 LHRH-A2. There were significant differences in serum cortisol (C), testosterone (T) and Gonadotropin hormone (GTHII) concentrations at tested dosages. In hormonal treatment groups, the highest hatching rate was observed in the groups receiving 4 μg kg-1 LHRH-A2. Finally the LHRH-A2 in dose of 4 μg kg-1 is effective in stimulating oocyte maturation and ovulation in Persian sturgeon.
机译：cip骨是里海经济上有价值的鱼类之一。由于of鱼在世界范围内的经济和文化重要性，对successful鱼繁殖的了解对于成功管理其水产养殖和自然种群是必要的。为了改善培养方法并促进圈养繁殖计划以支持补养，有必要了解人工繁殖期间类固醇激素的变化。施用st鱼促黄体激素释放激素类似物（LHRH-A2）会引起血清性类固醇水平的变化。为了研究不同剂量的LHRH-A2激素对波斯st鱼最终成熟和排卵的诱导作用，使用了18只成熟雌性和18只成熟雄性。所有雏鸡均注射LHRH-A2，剂量分别为4、6和8μgkg-1。在这项研究中，LHRH-A2成功诱导了雌性的最终成熟和排卵，并且在用4μgkg-1 LHRH-A2剂量治疗的组中观察到排卵雌性的百分比最高。在测试剂量下，血清皮质醇（C），睾丸激素（T）和促性腺激素（GTHII）浓度存在显着差异。在激素治疗组中，在接受4μgkg-1 LHRH-A2的组中观察到最高孵化率。最后，剂量为4μgkg-1的LHRH-A2可有效刺激波斯st鱼的卵母细胞成熟和排卵。

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